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      <title>ĐẠI SỐ 9 by Ly Trần</title>
      <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7</link>
      <description>Ôn tập chương 2 đại số 9</description>
      <language>en-us</language>
      <pubDate>2021-11-08 14:46:26 UTC</pubDate>
      <lastBuildDate>2026-05-01 10:51:19 UTC</lastBuildDate>
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         <title></title>
         <author>tranthihuongly1989</author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1875345851</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-08 15:03:02 UTC</pubDate>
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      <item>
         <title></title>
         <author>tranthihuongly1989</author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1875423682</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-08 15:25:06 UTC</pubDate>
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      </item>
      <item>
         <title>Trần ngọc châm 9b</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877314418</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 05:27:53 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877314418</guid>
      </item>
      <item>
         <title>H/s y=ax+b là hàm số bậc nhất &lt;=&gt;a khác 0</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877320659</link>
         <description><![CDATA[<div>ĐB khi a&gt;0&nbsp;<br>NB khi a&lt;0</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 05:31:16 UTC</pubDate>
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      </item>
      <item>
         <title>Quỳnh 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877323162</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 05:32:57 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877323162</guid>
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      <item>
         <title>Song song khi và chỉ khi a=a&#39;, b khác b&#39; và trùng nhau khi và chỉ khi a= a&#39; , b=b&#39;</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877326425</link>
         <description><![CDATA[<div>Cắt&nbsp;nhau khi và chỉ khi a khác a'</div>]]></description>
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         <pubDate>2021-11-09 05:35:18 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877326425</guid>
      </item>
      <item>
         <title>Đồng biến trên R khi a&gt;0 , nghịch biến trên R khi a&lt;0</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877328691</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 05:36:58 UTC</pubDate>
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      </item>
      <item>
         <title>Chúc 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877329501</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 05:37:24 UTC</pubDate>
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      </item>
      <item>
         <title>Bình Nguyên 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877332019</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 05:39:05 UTC</pubDate>
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      <item>
         <title>Thuỳ 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877332362</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 05:39:19 UTC</pubDate>
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      </item>
      <item>
         <title>Song song với nhau khi a = a&#39; b khác b&#39; </title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877332443</link>
         <description><![CDATA[<div>Trùng nhau khi a=a' b = b'<br>Cắt nhau khi a khác a'</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 05:39:22 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877334691</link>
         <description><![CDATA[<div>phạm thuỳ linh 9b</div>]]></description>
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         <pubDate>2021-11-09 05:40:42 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877339365</link>
         <description><![CDATA[<div>h/s y=ax+b xác định với mọi giá trị của x thuộc R:<br>đồng biến trên R khi a&gt;0<br>nghịch biến trên R khi a&lt;0</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 05:43:37 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877339365</guid>
      </item>
      <item>
         <title>Hàm số y=ax+b: đồng biến trên R khi a&gt;0, nghịch biến trên R khi a&lt;0</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877339979</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 05:44:02 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877344301</link>
         <description><![CDATA[<div>đường thẳng y=ax+b và đường thẳng y=a’x+b’ song song với nhau khi a=a’ ; b khác b’ , trùng nhau khi a=a’ ;b=b’</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 05:46:38 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877344301</guid>
      </item>
      <item>
         <title>Song song khi a=a&#39; và b Khác b&#39;</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877353606</link>
         <description><![CDATA[<div>Trùng nhau khi a=a' và b=b'<br>Cắt nhau khi a khác a'</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 05:52:42 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877353606</guid>
      </item>
      <item>
         <title>Hàm số y=(m-5)x-m =&gt; (m≠5) </title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877390092</link>
         <description><![CDATA[<div>a) d cắt trục tung tại điểm có tung độ =-3&nbsp;<br>=&gt; x = 0 ; y=-3<br>Thay x=0 ; y=-3 và công thức hàm số y=(m-5)x-m ta có : -3=(m-5).0-m<br>=&gt;m=3<br>Vậy hệ số góc a =-3<br>b) hàm số y=(m-5)x-m (m≠5)<br>d cắt trục hoành tại điểm có hoành độ =2&nbsp;</div><div>=&gt; x=2 ; y=0&nbsp;<br>Thay x=2 ; y=0 và công thức hàm số y=(m-5)x-m ta có: 0=(m-5).2-m&nbsp;<br>=&gt; (m-5).2-m = 0<br>&lt;=&gt; 2m-10-m=0&nbsp;<br>&lt;=&gt; 2m-m=10<br>&lt;=&gt;m=10<br>=&gt; Hệ số góc a=10-5=5&nbsp;<br>Vậy hệ số góc a =5<br>Phạm Thanh Chúc 9a🤞🏻<br><br></div><div><br></div><div><br><br></div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 06:15:40 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877390092</guid>
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      <item>
         <title>a) vì d cắt trục tung tại điểm có tung độ -3 </title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877401949</link>
         <description><![CDATA[<div>=&gt; x=0, y=-3&nbsp;<br>Thay x=0, y=-3 vào Pt ta có<br>-3=(m-5)0-m<br>&lt;=&gt; m=3<br>Vậy với m=3 thì d cắt trục tung tại điểm có tung độ bằng -3&nbsp;<br>b) vì d cắt trục hoành tại điểm có hoành độ bằng 2&nbsp;<br>=&gt; x=2, y=0 nên<br>Thay x=2, y=0 ta có&nbsp;<br>y=(m-5)x-m =&gt; 0=(m-5)2-m<br>&lt;=&gt; m=-1.25 thì d cắt trục hoành tại điểm có hoành độ bằng 2<br><br><br></div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 06:23:04 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877401949</guid>
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      <item>
         <title>Khánh ly 9b</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877417005</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 06:33:13 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877417005</guid>
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      <item>
         <title>Nguyễn Tuấn Anh 9A</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877501559</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 07:24:56 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877501559</guid>
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      <item>
         <title>Đỗ Huy Hoàng 9A</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877502431</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 07:25:25 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877508464</link>
         <description><![CDATA[<div>Tuấn&nbsp;Anh 9A</div>]]></description>
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         <pubDate>2021-11-09 07:29:00 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877508464</guid>
      </item>
      <item>
         <title>Hiếu 9B</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877510634</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 07:30:11 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877524525</link>
         <description><![CDATA[<div>Tuấn&nbsp;Anh 9A</div>]]></description>
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         <pubDate>2021-11-09 07:35:10 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877535134</link>
         <description><![CDATA[<div>Huy&nbsp;Hoàng </div>]]></description>
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         <pubDate>2021-11-09 07:41:05 UTC</pubDate>
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      <item>
         <title>Vũ Triệu Hoàng 9B</title>
         <author></author>
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         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 07:41:34 UTC</pubDate>
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      <item>
         <title>Tuấn Anh 9A</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877543139</link>
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         <pubDate>2021-11-09 07:45:40 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877543851</link>
         <description><![CDATA[<div>Huy&nbsp;Hoàng 9A</div>]]></description>
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         <pubDate>2021-11-09 07:46:06 UTC</pubDate>
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      <item>
         <title>Nguyễn Dương 9B</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877572341</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 08:01:26 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877572341</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877576833</link>
         <description><![CDATA[<div>Đỗ&nbsp;<mark>Huy&nbsp;Hoàng 9A</mark></div>]]></description>
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         <pubDate>2021-11-09 08:03:53 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877576833</guid>
      </item>
      <item>
         <title>Nguyễn Thị Bích Hằng 9A</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877613544</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 08:24:26 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877613544</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877655772</link>
         <description><![CDATA[<div>TRẦN TRUNG DŨNG 9A</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 08:46:30 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877655772</guid>
      </item>
      <item>
         <title>ĐB khi a&gt;0</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877660705</link>
         <description><![CDATA[<div>NB khi a&lt;0</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 08:49:07 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877660705</guid>
      </item>
      <item>
         <title>Trùng nhau khi a=a’;b=b’</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877664056</link>
         <description><![CDATA[<div><strong>Cắt nhau khi a khác a’</strong></div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 08:50:56 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877664056</guid>
      </item>
      <item>
         <title>Dương quốc khánh 9A</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877667466</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-11-09 08:52:48 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877683658</link>
         <description><![CDATA[<div>Vũ Triệu Hoàng.9B</div>]]></description>
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         <pubDate>2021-11-09 09:01:55 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877684938</link>
         <description><![CDATA[<div><mark>Trần trung Dũng </mark></div>]]></description>
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         <pubDate>2021-11-09 09:02:39 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877685241</link>
         <description><![CDATA[<div>Vũ Triệu Hoàng.9B</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446759862/599044798c03ec6af61abcd31910c958/IMG_20211109_152133.jpg" />
         <pubDate>2021-11-09 09:02:50 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877685241</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877700786</link>
         <description><![CDATA[<div>Vũ Triệu Hoàng.9B</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446759862/84b94ff0357bf3219f95ac9b94d427b0/IMG_20211109_161017.jpg" />
         <pubDate>2021-11-09 09:10:59 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877700786</guid>
      </item>
      <item>
         <title>Hàm số y=(m- 5)x - m =&gt; (m khác 5)</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877711754</link>
         <description><![CDATA[<div>a,d cắt trục tung tại điểm có tung độ =-3<br>=&gt;x=0; y=-3&nbsp;<br>Thay x =0 và y= -3 vào công thức hs<br>Y=(m-5 )x -m ta có : -3 =(m-5 )×0-m&nbsp;<br>=&gt; m=3<br>Vậy hs m=3 thì d cắt trục tung tại điểm có tung độ =-3&nbsp;<br>b,hàm số y=(m-5 )x (m khác 5)<br>d cắt trục hoành tại điểm có hoành độ =2<br>=&gt;x=2;y=0<br>Thay x=2 và y=0 vào công thức hs<br>Y=(m-5)x -m ta có:0=(m-5)×2-m&nbsp;<br>=&gt;m=-1,25<br>Vậy với m=-1,25 thì d cắt trục hoành tại điểm có hoành độ=2<br><br>Trần ngọc châm😀</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 09:17:18 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877711754</guid>
      </item>
      <item>
         <title>Nguyễn Vũ Trang Nhung 9B</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877719098</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 09:21:06 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877719098</guid>
      </item>
      <item>
         <title>Hàm số y=ax+b</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877723150</link>
         <description><![CDATA[<div>ĐB khi a&gt;0<br>NB khi a&lt;0<br>NHUNG</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 09:23:25 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877723150</guid>
      </item>
      <item>
         <title>Đường thẳng y=ax+b và đường thẳng y=a&#39;x+b&#39;</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877733799</link>
         <description><![CDATA[<div>Song song khi a=a' ,b≠b'<br>Cắt nhau khi a≠a'&nbsp;<br> NHUNG.</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 09:29:15 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877733799</guid>
      </item>
      <item>
         <title>Quỳnh 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877738962</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446716451/06664880e62e2026b23fb8331936172e/IMG_UPLOAD_20211109_163145.jpg" />
         <pubDate>2021-11-09 09:32:06 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877738962</guid>
      </item>
      <item>
         <title>Quỳnh 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877749352</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446716451/1dcbecd742b8a1e4c78f8c290cf870aa/IMG_UPLOAD_20211109_163658.jpg" />
         <pubDate>2021-11-09 09:37:20 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877749352</guid>
      </item>
      <item>
         <title>Vũ Quỳnh Chi 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877761309</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 09:43:15 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877761309</guid>
      </item>
      <item>
         <title>Dương quốc khánh 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877774037</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446723491/bf2156231f57a6468dc684fe14e7da9d/IMG_UPLOAD_20211109_164928.jpg" />
         <pubDate>2021-11-09 09:49:48 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877774037</guid>
      </item>
      <item>
         <title>Quỳnh 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877774252</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446716451/d33cbbc46578b2351762d628048ed0a7/IMG_UPLOAD_20211109_164715__1_.jpg" />
         <pubDate>2021-11-09 09:49:55 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877774252</guid>
      </item>
      <item>
         <title>Quỳnh 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877775071</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446716451/de4e5c863d0e9d60ca925d62e55114aa/IMG_UPLOAD_20211109_164749__1_.jpg" />
         <pubDate>2021-11-09 09:50:22 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877775071</guid>
      </item>
      <item>
         <title>Vũ Thị Hương Ly 9A</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877798465</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 10:03:01 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877798465</guid>
      </item>
      <item>
         <title>Nguyễn Tường Vi 9b</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877813387</link>
         <description><![CDATA[<div>Hàm số y=ax+b:<br>- Đồng biến khi a&gt;0<br>- Nghịch biến khi a&lt;0</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 10:10:57 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877813387</guid>
      </item>
      <item>
         <title>                                                                  y=(m-5)x-m                        Có a=m-5 ;  b=m            Để hàm số xác định thì a≠0 =&gt;m-5≠0 &lt;=&gt;m≠5.     </title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877826462</link>
         <description><![CDATA[<div>a) vì đường thẳng (d) cắt trục tung tại điểm có tung độ bằng -3<br>&nbsp; &nbsp;nên x=0; y=-3<br>&nbsp;Thay x=0 và y=-3 vào công thức hàm số ta có:<br>&nbsp; &nbsp; &nbsp;-3=(m-5).0-m<br>&lt;=&gt; -m=-3<br>&lt;=&gt; m=3<br>Vậy hệ số góc của đường thẳng y=(m-5)x-m là a=3-5<br>&nbsp; &nbsp; =&gt;a=-2<br>b)vì đường thẳng (d) cắt trục hoành tại điểm có hoành độ bằng 2<br>&nbsp; &nbsp; nên x=2; y=0<br>&nbsp;Thay x=2 và y=0 vào công thức hàm số ta có:<br>&nbsp; &nbsp; &nbsp;0=(m-5).2-m<br>&lt;=&gt; (m-5).2-m=0<br>&lt;=&gt; 2m-10-m=0<br>&lt;=&gt; m-10=0<br>&lt;=&gt; m=10<br>Vậy hệ số góc của đường thẳng y=(m-5)x-m là a=10-5 &nbsp; =&gt;a=5<br>          NHUNG<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 10:18:20 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877826462</guid>
      </item>
      <item>
         <title>Nguyễn Tường Vi 9b</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877838723</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 10:25:41 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877838723</guid>
      </item>
      <item>
         <title>Nguyễn Tường Vi 9b</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877845595</link>
         <description><![CDATA[<div>Đường thẳng y=ax+b và đường thẳng y=a'x+b' :<br>-Song song khi và chỉ khi a=a' ,b khác b'<br>-Cắt nhau khi và chỉ khi a khác a'</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 10:29:23 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877845595</guid>
      </item>
      <item>
         <title>Nguyễn Duy Đạt</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877851423</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 10:32:51 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877851423</guid>
      </item>
      <item>
         <title>Nguyễn Duy Đạt 9B</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877856584</link>
         <description><![CDATA[<div>Hàm số y=ax+b<br>Đồng biến khi a&gt;0<br>Nghịch biến khi a&lt;0</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 10:35:46 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877856584</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877872932</link>
         <description><![CDATA[<div>Vũ Thị Thuý 9B</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 10:45:16 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877872932</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877876616</link>
         <description><![CDATA[<div>Hàm số y=ax+b đồng biến trên R khi a&gt;0<br>nghịch biến trên R khi a&lt;0</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 10:47:13 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877876616</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877880182</link>
         <description><![CDATA[<div>hai đường thẳng y=ax+b và đường thẳng y=a’x+b’<br>-song song khi a=a’ ; b khác b’<br>-trùng nhau khi a khác a’</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 10:48:59 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877880182</guid>
      </item>
      <item>
         <title>Nguyễn Tường Vi 9b</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877905439</link>
         <description><![CDATA[<div>y=(m-5)x-m<br>Hàm số trên xác định khi m khác 5<br>a)Vì (d) cắt trục tung tại điểm có tung độ là -3 nên:<br>&nbsp;x=0 ; y=-3<br>Thay x=0 và y=-3 vào công thức hàm số.Ta có:<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; -3=(m-5)0-m=&gt;(m-5)0-m=-3<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;=&gt;-m=-3<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;=&gt;m=3(tm)<br>Khi đó hệ số góc của là a=3-5=-2<br>&nbsp;Vậy hệ số góc là -2<br>b)Vì (d) cắt trục hoành tại điểm có hoành độ là 2 nên:<br>x=2 ; y=0<br>Thay x=2 và y=0 vào công thức hàm số. Ta có:<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0=(m-5)2-m=&gt;(m-5)2-m=0<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;=&gt;2m-10-m=0<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;=&gt;m-10=0<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;=&gt;m=10(tm)<br>Khi đó hệ số góc là a=10-5=5<br>Vậy hệ số góc là 5</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 11:04:02 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877905439</guid>
      </item>
      <item>
         <title>Nguyễn Tiến Mạnh 9A</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877947410</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 11:28:31 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877947410</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877952436</link>
         <description><![CDATA[<div>Nguyễn&nbsp;Tiến Mạnh 9A</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447063171/0767f034a840838fc3c871ca56d2d478/JPEG_20211109_183007_1078136374.jpg" />
         <pubDate>2021-11-09 11:31:20 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877952436</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877989473</link>
         <description><![CDATA[<div>Đào&nbsp;yến Nhi 9B</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447179545/7c0014c138c4295ebf52bc571096074f/IMG_UPLOAD_20211109_185111.jpg" />
         <pubDate>2021-11-09 11:51:35 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1877989473</guid>
      </item>
      <item>
         <title>Khánh Linh 9A</title>
         <author>linhkvtm</author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878010468</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 12:03:29 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878010468</guid>
      </item>
      <item>
         <title>Đăng 9A</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878016597</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 12:06:45 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878016597</guid>
      </item>
      <item>
         <title>Dương quốc khánh 9A</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878022925</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446723491/2fb0cccb656c8ad7295807f70a5d097b/IMG_UPLOAD_20211109_190932.jpg" />
         <pubDate>2021-11-09 12:10:11 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878022925</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878026606</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446719361/3cd140c5ca9dcdff2b92e976f2b75b76/99C9C5D5_62A1_4BBD_9E90_66BF6760C630.jpeg" />
         <pubDate>2021-11-09 12:12:11 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878026606</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878029874</link>
         <description><![CDATA[<div>Vũ khánh ly 9b</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446775242/52ba0ad489343ba499eb997c273db847/IMG_UPLOAD_20211109_191243.jpg" />
         <pubDate>2021-11-09 12:13:52 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878029874</guid>
      </item>
      <item>
         <title>Đỗ hải đăng 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878030104</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447233894/ff730b0116c7638c4ce7dd3c481802c7/IMG_20211102_063904_3.jpg" />
         <pubDate>2021-11-09 12:13:58 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878030104</guid>
      </item>
      <item>
         <title> Hs y= ax+b</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878035943</link>
         <description><![CDATA[<div>Đồng biến khi a&gt;0<br>Nghịch biến khi a&lt;0<strong><br>Vũ khánh ly 9b</strong></div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 12:17:07 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878035943</guid>
      </item>
      <item>
         <title>DŨNG 9A</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878037959</link>
         <description><![CDATA[<div>H/s y=ax+b&nbsp;<br>DB khi a&gt;0<br>NB khi a&lt;0</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 12:18:15 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878037959</guid>
      </item>
      <item>
         <title>Dương quốc khánh 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878040313</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446723491/0dac99779a3f1d2bcb26712dd6a4b1b9/IMG20211109191841.jpg" />
         <pubDate>2021-11-09 12:19:29 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878040313</guid>
      </item>
      <item>
         <title>Nguyễn Hà Vy 9B</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878040543</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 12:19:37 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878040543</guid>
      </item>
      <item>
         <title>Dương quốc khánh </title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878041539</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446723491/2fd3f64483430c64ad3a94ea5a4ffa5c/IMG20211109191849.jpg" />
         <pubDate>2021-11-09 12:20:07 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878041539</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878042564</link>
         <description><![CDATA[<div>Nguyễn Hà Vy 9b</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446711886/42c8e52d9045711d9d154673af20d22a/20211109_191710.jpg" />
         <pubDate>2021-11-09 12:20:41 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878042564</guid>
      </item>
      <item>
         <title>2 đường thẳng </title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878042611</link>
         <description><![CDATA[<div>Song song khi a=a'<br>Cắt nhau khi a khác a'<br>Vũ khánh Ly</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 12:20:42 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878042611</guid>
      </item>
      <item>
         <title>Uyên 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878043431</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 12:21:11 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878043431</guid>
      </item>
      <item>
         <title>d1 cắt d2</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878044144</link>
         <description><![CDATA[<div>Khi a khác a’;b khác b’<br><strong>d1 trùng d2<br>Khi a=a’<br></strong><strong><mark>Trần Trung Dũng</mark></strong></div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 12:21:32 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878044144</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878044297</link>
         <description><![CDATA[<div>Nguyễn Hà Vy 9b</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446711886/f0d76309ec28be68fc93b4dfba78044e/20211109_191747.jpg" />
         <pubDate>2021-11-09 12:21:37 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878044297</guid>
      </item>
      <item>
         <title>Uyên 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878044500</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446733599/3078a9dcafc9c25df6d0260bbabdaf9e/IMG_20211109_191949.jpg" />
         <pubDate>2021-11-09 12:21:43 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878044500</guid>
      </item>
      <item>
         <title>K.Linh 9A</title>
         <author>linhkvtm</author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878044984</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447228058/cb16835792b7d26579a9c0b6ff29eb40/253659465_1134050876999705_7511788857704419754_n.jpg" />
         <pubDate>2021-11-09 12:21:57 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878044984</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878046302</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446785446/d75a55581ed5041786bb99183e8ea13f/IMG_20211109_191912_1.jpg" />
         <pubDate>2021-11-09 12:22:37 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878046302</guid>
      </item>
      <item>
         <title>K.Linh 9A</title>
         <author>linhkvtm</author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878046321</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447228058/066f416922453c4cd759047ec722211d/254357218_4360368947407756_1858799614762431720_n.jpg" />
         <pubDate>2021-11-09 12:22:38 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878046321</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878046500</link>
         <description><![CDATA[<div>Nguyễn Hà Vy 9b</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446711886/ef2374133c7616fce9ee33080f4205ad/20211109_191808.jpg" />
         <pubDate>2021-11-09 12:22:44 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878046500</guid>
      </item>
      <item>
         <title>K.Linh 9A</title>
         <author>linhkvtm</author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878046790</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447228058/5fb3234e213ea9864fbb1e1d0c7d0ee8/254351923_468948514534839_8726502911681212614_n.jpg" />
         <pubDate>2021-11-09 12:22:53 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878046790</guid>
      </item>
      <item>
         <title>Chi 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878048797</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446785446/9c70a79e39c55660bb61f1ab7c203489/IMG_20211109_191913_1.jpg" />
         <pubDate>2021-11-09 12:23:55 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878048797</guid>
      </item>
      <item>
         <title>Chi 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878050234</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446785446/98efe5eaa53b93d9f1780a3084da43b0/IMG_20211109_191915_1.jpg" />
         <pubDate>2021-11-09 12:24:39 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878050234</guid>
      </item>
      <item>
         <title>Đỗ hải đăng 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878060087</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447233894/ebe740a669a254e7b4fdd5eaf99f41bc/IMG20211109192809_2.jpg" />
         <pubDate>2021-11-09 12:29:33 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878060087</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878063466</link>
         <description><![CDATA[<div><strong>tống&nbsp;trường giang 9B</strong></div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447235030/e1b424c6db437abe3094a099739e87e1/IMG_UPLOAD_20211109_193005.jpg" />
         <pubDate>2021-11-09 12:31:10 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878063466</guid>
      </item>
      <item>
         <title>Đỗ hải đăng 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878065693</link>
         <description><![CDATA[<div>&nbsp; &nbsp; &nbsp;0 = (m - 5)2 - m<br>&lt;=&gt; 2m - 10 - m = 0<br>&lt;=&gt; m - 10 = 0<br>&lt;=&gt; m = 10<br>Hệ số góc là a = 10- 5= 5<br>Vậy hệ số góc là 5</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447233894/d0145815b53e8ede071e65d9c28e88d7/IMG20211109192813_2.jpg" />
         <pubDate>2021-11-09 12:32:09 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878065693</guid>
      </item>
      <item>
         <title>Uyên 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878067153</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446733599/9ef803b26bc7d26f85425b0a1b356f2d/IMG_20211109_193226.jpg" />
         <pubDate>2021-11-09 12:32:53 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878067153</guid>
      </item>
      <item>
         <title>Uyên 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878067970</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446733599/485fdeebcfd70efeced693687c808868/IMG20211109193216.jpg" />
         <pubDate>2021-11-09 12:33:17 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878067970</guid>
      </item>
      <item>
         <title>Trần Duy Khánh9B</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878138440</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 13:02:11 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878138440</guid>
      </item>
      <item>
         <title>Trần Duy Khánh9B</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878150613</link>
         <description><![CDATA[<div>Hàm số y=ax+b Đồng biến khi a&gt;0<br>Hàm số y=ax+b Nghịch biến khi a&lt;0</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 13:06:48 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878150613</guid>
      </item>
      <item>
         <title>Trần Duy Khánh9B</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878165251</link>
         <description><![CDATA[<div>2 đường thẳng trên cắt nhau với nhau khi và chỉ khi a khác a'<br>2 đường thẳng trên song song khi và chỉ khi a=a' và b khác b'</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 13:12:06 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878165251</guid>
      </item>
      <item>
         <title></title>
         <author>duongvietduc</author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878185488</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447265669/254175cb4cba5f4156506f2d42dd9425/image.jpg" />
         <pubDate>2021-11-09 13:19:02 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878185488</guid>
      </item>
      <item>
         <title>V. ĐứC. 9b</title>
         <author>duongvietduc</author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878193398</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447265669/982fe2a9cd4ebc557216db072abda753/image.jpg" />
         <pubDate>2021-11-09 13:21:31 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878193398</guid>
      </item>
      <item>
         <title>V. ĐứC.    9b</title>
         <author>duongvietduc</author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878197987</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447265669/ff01b4044de434d5c650458f8fed33b6/image.jpg" />
         <pubDate>2021-11-09 13:23:05 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878197987</guid>
      </item>
      <item>
         <title>Trần Duy Khánh 9B</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878201845</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447330740/c034b512bf3746796199152d2151882f/20211109_202330.jpg" />
         <pubDate>2021-11-09 13:24:19 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878201845</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878216272</link>
         <description><![CDATA[<div><strong>Ngà 9a</strong></div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446785268/a3c5e899c990b29f9b071cab0b7f2a0e/81FE62C1_5930_4DF8_B2B0_970A41493B29.jpeg" />
         <pubDate>2021-11-09 13:29:03 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878216272</guid>
      </item>
      <item>
         <title>V. ĐứC. 9b</title>
         <author>duongvietduc</author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878240236</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1447265669/732d79d5a319db29eebd3336d5811a14/image.jpg" />
         <pubDate>2021-11-09 13:36:48 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878240236</guid>
      </item>
      <item>
         <title>Nguyễn duy dạt 9B</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878310018</link>
         <description><![CDATA[<div>Đường thằng y=ax+b và y=a'x+b&nbsp;<br>Song song khi a=a' ; b khác b'&nbsp;<br>Cắt nhau khi a khác a'</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 13:57:39 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878310018</guid>
      </item>
      <item>
         <title>Hằng 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878381492</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1446914438/3b3cd13a7b957e85ed88599918c65c25/IMG_20211109_211241.jpg" />
         <pubDate>2021-11-09 14:18:27 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878381492</guid>
      </item>
      <item>
         <title>Hằng 9a</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878409795</link>
         <description><![CDATA[<div>Hai đường thẳng y=ax+b và đường thẳng y=a'x+b'<br>a)hai đường thẳng song song khi a=a';b khác  b'<br>b) hai đường thẳng cắt nhau khi a khác a'</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 14:26:16 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878409795</guid>
      </item>
      <item>
         <title>Nguyen van hien 9b</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878425299</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-11-09 14:30:32 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1878425299</guid>
      </item>
      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1879751953</link>
         <description><![CDATA[<div>vũ&nbsp;thị na 9b</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-11-10 00:10:31 UTC</pubDate>
         <guid>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1879751953</guid>
      </item>
      <item>
         <title>H/S y=ax+b đồng biến khi nào,nghịch biến khi nào</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1879753478</link>
         <description><![CDATA[<div>H/S y=ax+b đống biến khi a&gt;0<br>H/S y=ax+b nghịch biến khi a&lt;0</div>]]></description>
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      <item>
         <title>Vũ Thị Thảo9b</title>
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      <item>
         <title>Hàm số y=ax+0 đồng biến khi a&gt;0 ,nghịch biến khi a&lt;0</title>
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         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1879778013</link>
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         <pubDate>2021-11-10 00:24:34 UTC</pubDate>
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      <item>
         <title>Hàm số y=ax+b đồng biến khi a&gt;0</title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1879846635</link>
         <description><![CDATA[<div><strong>Hàm&nbsp;số y=ax+b nghịch biến khi a&lt;0</strong></div>]]></description>
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         <pubDate>2021-11-10 00:55:46 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
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         <description><![CDATA[<div>Vũ&nbsp;thị na</div>]]></description>
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         <pubDate>2021-11-10 01:00:10 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
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         <description><![CDATA[<div>Vũ&nbsp;thị na 9b</div>]]></description>
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         <pubDate>2021-11-10 01:01:43 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
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         <description><![CDATA[<div>Vũ thị&nbsp;na 9b</div>]]></description>
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         <pubDate>2021-11-10 01:11:02 UTC</pubDate>
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      <item>
         <title>Hien9b</title>
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         <description><![CDATA[<div>H/s y=ax+b khi<br>A&gt;0 thì DB<br>A&lt;0thì NB</div>]]></description>
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         <pubDate>2021-11-10 01:25:43 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1879916087</link>
         <description><![CDATA[<div>Dương Việt Đức 9b</div>]]></description>
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         <pubDate>2021-11-10 01:25:49 UTC</pubDate>
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      <item>
         <title>Đào yến nhi</title>
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         <pubDate>2021-11-10 01:27:26 UTC</pubDate>
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      <item>
         <title>Hien9b</title>
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         <description><![CDATA[<div>Dt song song khi a=a'&nbsp;<br><br>Dt cat nhau khi a=a' b=b'</div>]]></description>
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         <pubDate>2021-11-10 01:29:15 UTC</pubDate>
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         <title>Vũ thị hồng anh 9b</title>
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         <pubDate>2021-11-10 07:58:13 UTC</pubDate>
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      <item>
         <title>Hàm số y=ax+b xác định với mọi giá trị của x thuộc R</title>
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         <pubDate>2021-11-10 08:01:19 UTC</pubDate>
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         <title>Đg thẳng y=ax+b và đg thẳng y=a&#39;x+b song song khi a=a&#39;.b khác b&#39;và cắt nhau khi a khác a&#39;</title>
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         <pubDate>2021-11-10 08:06:00 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1880657645</link>
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         <pubDate>2021-11-10 08:09:52 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1880768692</link>
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         <pubDate>2021-11-10 09:12:07 UTC</pubDate>
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      <item>
         <title></title>
         <author></author>
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         <description><![CDATA[<div>Đoàn Trung Dân 9B</div>]]></description>
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         <pubDate>2021-11-10 09:12:47 UTC</pubDate>
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         <title></title>
         <author></author>
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         <pubDate>2021-11-10 09:13:23 UTC</pubDate>
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         <title></title>
         <author></author>
         <link>https://padlet.com/tranthihuongly1989/7kn8ennlboun0kd7/wish/1880795617</link>
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         <pubDate>2021-11-10 09:26:48 UTC</pubDate>
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