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      <title>La parabola by Elena Pietrobon</title>
      <link>https://padlet.com/mitikaelena/kpdrrat4u9cp</link>
      <description>Risoluzione di disequazioni di secondo grado</description>
      <language>en-us</language>
      <pubDate>2018-02-18 17:28:30 UTC</pubDate>
      <lastBuildDate>2024-10-25 00:39:46 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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      <item>
         <title></title>
         <author>mitikaelena</author>
         <link>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232722009</link>
         <description><![CDATA[<div>Partiamo dall'equazione generale della parabola:</div><var>f(x)=ax^2+bx+c</var>]]></description>
         <enclosure url="" />
         <pubDate>2018-02-18 17:38:28 UTC</pubDate>
         <guid>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232722009</guid>
      </item>
      <item>
         <title></title>
         <author>mitikaelena</author>
         <link>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232722115</link>
         <description><![CDATA[<div>Calcoliamo il delta con la formula:</div><var> Δ=b^2-4ac</var>]]></description>
         <enclosure url="" />
         <pubDate>2018-02-18 17:38:59 UTC</pubDate>
         <guid>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232722115</guid>
      </item>
      <item>
         <title> Δ&gt;0</title>
         <author>mitikaelena</author>
         <link>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232722837</link>
         <description><![CDATA[<div>2 soluzioni x<sub>1</sub> e x<sub>2</sub></div><div>f(x)=0 se  x=x<sub>1</sub> v x=x<sub>2</sub></div>]]></description>
         <enclosure url="" />
         <pubDate>2018-02-18 17:43:19 UTC</pubDate>
         <guid>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232722837</guid>
      </item>
      <item>
         <title> Δ=0</title>
         <author>mitikaelena</author>
         <link>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232723422</link>
         <description><![CDATA[<div>1 soluzione x<sub>1 =</sub> x<sub>2</sub></div><div>f(x)=0 &lt;=&gt; x=x<sub>1</sub></div>]]></description>
         <enclosure url="" />
         <pubDate>2018-02-18 17:47:03 UTC</pubDate>
         <guid>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232723422</guid>
      </item>
      <item>
         <title> Δ&lt;0</title>
         <author>mitikaelena</author>
         <link>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232723737</link>
         <description><![CDATA[<div>Nessuna soluzione </div>]]></description>
         <enclosure url="" />
         <pubDate>2018-02-18 17:48:55 UTC</pubDate>
         <guid>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232723737</guid>
      </item>
      <item>
         <title>a&gt;0 </title>
         <author>mitikaelena</author>
         <link>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232724308</link>
         <description><![CDATA[<div>se a&gt;0 la concavità della parabola è verso l'alto<br><br></div><div>f(x) &gt; 0 <strong>x&lt;x</strong><strong><sub>1  </sub></strong><strong>v  x&gt;x</strong><strong><sub>2</sub></strong></div>]]></description>
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         <pubDate>2018-02-18 17:53:05 UTC</pubDate>
         <guid>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232724308</guid>
      </item>
      <item>
         <title>a&lt;0</title>
         <author>mitikaelena</author>
         <link>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232724655</link>
         <description><![CDATA[<div>se a&lt;0 la concavità della parabola è verso il basso<br><br>f(x)&gt;0   <strong>x</strong><strong><sub>1</sub></strong><strong>&lt;x&lt;x</strong><strong><sub>2</sub></strong></div>]]></description>
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         <pubDate>2018-02-18 17:54:59 UTC</pubDate>
         <guid>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232724655</guid>
      </item>
      <item>
         <title>f(x)&gt;0 </title>
         <author>mitikaelena</author>
         <link>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232725680</link>
         <description><![CDATA[<div>La parabola è sempre positiva se a&gt;0 (escluso il valore di x<sub>1</sub>)</div>]]></description>
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         <pubDate>2018-02-18 18:01:06 UTC</pubDate>
         <guid>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232725680</guid>
      </item>
      <item>
         <title>f(x)&lt;0</title>
         <author>mitikaelena</author>
         <link>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232726978</link>
         <description><![CDATA[<div>La parabola è sempre negativa per a&lt;0 (escluso il valore di x<sub>1</sub>)</div>]]></description>
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         <pubDate>2018-02-18 18:09:09 UTC</pubDate>
         <guid>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232726978</guid>
      </item>
      <item>
         <title>a&gt;0</title>
         <author>mitikaelena</author>
         <link>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232727299</link>
         <description><![CDATA[<div>è sempre nel semipiano positivo</div>]]></description>
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         <pubDate>2018-02-18 18:11:21 UTC</pubDate>
         <guid>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232727299</guid>
      </item>
      <item>
         <title>a&lt;0</title>
         <author>mitikaelena</author>
         <link>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232727333</link>
         <description><![CDATA[<div>è sempre nel semipiano negativo</div>]]></description>
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         <pubDate>2018-02-18 18:11:34 UTC</pubDate>
         <guid>https://padlet.com/mitikaelena/kpdrrat4u9cp/wish/232727333</guid>
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