8A1 TL- Luyện tập PT đa thức thành nhân tử by Tâm Đặng Thị Minh https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5 en-us 2021-10-05 00:17:58 UTC 2026-01-24 04:30:58 UTC hello@padlet.com dangthiminhtamtmath91 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791151431 2021-10-05 00:20:27 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791151431 dangthiminhtamtmath91 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791153998 Thực hiện tối thiểu 1 ý trong thời gian 5 phút]]> 2021-10-05 00:21:38 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791153998 dangthiminhtamtmath91 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791155424 2021-10-05 00:22:14 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791155424 Kiệt kiet035033 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791322994 4x^4-9x^2
=(2x^2-3x)(2x^2+3x)]]> 2021-10-05 01:28:42 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791322994 Thu Huyền huyen054478 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791324614 4x^4-9x^2
= x^2(4x^2-9)
=x^2[(2x-3)(2x+3)] ]]> 2021-10-05 01:29:19 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791324614 Nguyễn Khánh Vy clairesolariawolf https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791325253 a, 4x^4-9x^2
=(2x^2-3x)(2x^2+3x)]]> 2021-10-05 01:29:34 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791325253 Gia Khoa https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791325697   4x^4-9x^2
=x^2(4x^2-9)
=x^2(2x-3)(2x+3)]]> 2021-10-05 01:29:44 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791325697 Nguyễn Lương anh anh047678 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791325839 2021-10-05 01:29:47 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791325839 Dương An an051068 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791326615 a) 4x^4-9x^2
= (2x^2-3x)(2x^2+3x)]]> 2021-10-05 01:30:06 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791326615 khuê nuhuynguyen https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791327204 a. 4x^4- 9x^2
= (2x^2- 3x) (2x^2+3x)]]> 2021-10-05 01:30:20 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791327204 ĐỨc https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791327564 4x^4-9x^2
= (2x^2-3x).(2x^2+3)]]> 2021-10-05 01:30:28 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791327564 Cẩm Tú mcamtu https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791327728 a) 4x^4-9x^2
= x^2(4x^2-9)
= x^2(2x-3)(2x+3)]]> 2021-10-05 01:30:32 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791327728 Ngọc Anh anh042536 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328268 4x^4-9x^2
=x^2(4x^2-9)
=x^2(2x-3)(2x+3)]]> 2021-10-05 01:30:45 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328268 Minh Phương phuong022710 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328300 a) 4x^4 - 9x^2
= x^2( 4x^2 - 9 )
=x^2( 2x - 3 )( 2x + 3 )]]> 2021-10-05 01:30:46 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328300 a, 4x^4 - 9x^2 anh033478 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328334 = x^2 ( 4x^2 - 9 )
= x^2 ( 2x- 3 ) ( x + 3 )]]> 2021-10-05 01:30:47 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328334 Nguyễn Lương anh anh047678 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328615 2021-10-05 01:30:53 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328615 Kiệt kiet035033 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328916 x^2-2xy+y^2-z^2
=(x-y)^2-z^2
=(x-y+z)(x-y-z)]]> 2021-10-05 01:31:01 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328916 Phương Anh anh055122 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328921 4x^4-9x^2
= x^2(4x^2-9)
=x^2 (2x-3)(2x+3)]]> 2021-10-05 01:31:01 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328921 Trang trang042972 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328939 2021-10-05 01:31:02 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791328939 Bảo Lâm lam055735 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791329057 a,4x^4-9x^2
=x^2(4x^2-9)
=x^2(2x-3) (2x+3)]]> 2021-10-05 01:31:05 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791329057 Trang trang042972 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791329268 2021-10-05 01:31:09 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791329268 Thảo https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791329983 a)4x^4 - 9x^2 
= (2x^2)^2 - (3x)^2
(2x^2-3x)(2x^2+3x)
= x^2(4x^2 - 3^2)
x^2[(2x-3)(2x+3)] ?]]> 2021-10-05 01:31:19 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791329983 KIỀU ANH https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791330044 4x^4-9x^2
= x^2(4x^2-9)
=x^2 (2x-3)(2x+3) ]]> 2021-10-05 01:31:21 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791330044 Nguyễn Lương anh anh047678 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791330303 2021-10-05 01:31:27 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791330303 Thu Huyền huyen054478 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791330364 b) x^2-2xy+y^2-z^2
=(x^2-2xy+y^2)-z^2
=(x-y)^2-z^2
=[(x-y)-z][(x-y)+z)]]]> 2021-10-05 01:31:28 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791330364 Gia Khoa https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791330433 x^2 - 2xy + y^2 - z^2 
=(x-y)2-z2
=(x-y-z)(x-y+z)

]]> 2021-10-05 01:31:30 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791330433 Khánh Nguyên nguyenkhanhnguyen https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791330436    4x^4 - 9x^2
= x^2 (4x^2 - 9)
= x^2 (2x-3) (2x+3)]]> 2021-10-05 01:31:30 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791330436 Bảo Châu chau050626 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791330834 2021-10-05 01:31:41 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791330834 Quang Anh anh033478 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791331020 b,x^2 - 2xy + y^2 - z^2
= ( x - y )^2 - z^2
= ( x - y + z) ( x - y - z )]]> 2021-10-05 01:31:45 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791331020 Bảo Châu chau050626 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791331841 2021-10-05 01:32:05 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791331841 Bảo Hân han052107 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791332649 x^2-2xy+y^2-z^2
=(x-y)^2-z^2
=(x-y+z)(x-y-z)]]> 2021-10-05 01:32:26 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791332649 Nguyễn Khánh Vy clairesolariawolf https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791332852 b, x^2-2xy +y^2-x^2
=(x+y)^2 - z^2
= (x-y-z)(x-y+z)]]> 2021-10-05 01:32:31 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791332852 Ngọc Anh anh042536 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791333331 x^2-2xy+y^2-z^2
=(x^2-2xy+y^2)-z^2
=(x-y)^2-z^2
=[(x-y)-z][(x-y)+z)]]]> 2021-10-05 01:32:36 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791333331 linh khanhlinh01008 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791333444 a) 4x^4-9x^2
=(2x^2-3x)(2x^2+3x)]]> 2021-10-05 01:32:39 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791333444 ĐỨc https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791334052 x^2-2xy+y^2-z^2
=(x-y)^2-z^2
=(x-y+z).(x-y-z)]]> 2021-10-05 01:32:55 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791334052 Kiệt kiet035033 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791334370 3x^2+6xy+3y^2-3z^2
=3(x^2+2xy+y^2-z^2)
=3[(x+y)^2-z^2]
=3(x+y-z)(x+y+z)]]> 2021-10-05 01:33:01 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791334370 Vân https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791334422 2021-10-05 01:33:02 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791334422 Phương Anh anh055122 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791334592 x^2-2xy+y^2-z^2
=(x-y)^2-z^2
=(x-y+z)(x-y-z)]]> 2021-10-05 01:33:05 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791334592 Bảo Hân han052107 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791335157 4x^4-9x^2
=x^2(4x^2-9)
=x^2(2x-3)(2x+3)]]> 2021-10-05 01:33:20 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791335157 Khánh Nguyên nguyenkhanhnguyen https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791335246   x^2 - 2xy +y^2 - z^2
=(x^2 - 2xy +y^2) - z^2
=(x-y)^2 - z^2
= (x-y-z) (x-y+z)]]> 2021-10-05 01:33:22 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791335246 Vân https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791335356 2021-10-05 01:33:25 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791335356 Dương An an051068 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791335397 x^2 - 2xy + y^2 - z^2 
=(x-y)^2-z^2
=(x-y-z)(x-y+z)
]]> 2021-10-05 01:33:26 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791335397 Thảo https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791335449 x^2-4x+3
= x^2-4x+4-1
= (x-2)^2 -1
= (x-2-1)(x-2+1)
=(x-3)(x-1)]]> 2021-10-05 01:33:27 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791335449 Vân https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791335810 2021-10-05 01:33:37 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791335810 phúc an an042380 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791336057 2021-10-05 01:33:43 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791336057 Vũ Minh minh042629 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791337379 4x^2 - 9x^2
= (2x^2 - 3x)(2x^2 + 3x)]]> 2021-10-05 01:34:13 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791337379 Thảo https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791337430 x^2 - 2xy + y^2 - z^2 
=(x-y)2-z2
=(x-y-z)(x-y+z)
]]> 2021-10-05 01:34:14 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791337430 Minh Phương phuong022710 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791337611 b)x^2 - 2xy + y^2 - z^2
=( x - y )^2 - z^2
=( x - y + z)(x - y - z)]]> 2021-10-05 01:34:18 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791337611 Nguyễn Lương anh anh047678 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791337755 2021-10-05 01:34:22 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791337755 Bảo Châu chau050626 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791338591 2021-10-05 01:34:43 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791338591 Gia Khoa https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791338851 3x^2 + 6xy + 3y^2 – 3z^2
= 3.(x^2 + 2xy + y^2 – z^2)
= 3[(x^2 + 2xy + y^2) – z^2]
= 3[(x + y)^2 – z^2]
= 3(x + y – z)(x + y + z)

]]> 2021-10-05 01:34:49 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791338851 Quang Anh anh033478 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791338974 c, 3x^2 + 6xy + 3y^2 - 3z^2
=3 ( x^2 + 2xy + y^2 - z^2 )
=3 [ ( x + y )^2 - z^2]
=3 ( x + y - z )( x + y + z )]]> 2021-10-05 01:34:53 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791338974 Trang trang042972 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791340359 2021-10-05 01:35:28 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791340359 Tú mcamtu https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791340459 3x^2+6xy+3y^2-3z^2
=3(x^2+2xy+y^2-z^2)
=3[(x+y)^2-z^2]
=3(x+y-z)(x+y+z)]]> 2021-10-05 01:35:30 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791340459 khuê nuhuynguyen https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791340712 c. 3x^2+ 6xy+3y^2-3y^2
= 3(x^2+ 2xy+ y^2- z^2)
= 3(x+y-z) (x+y+z)]]> 2021-10-05 01:35:36 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791340712 ĐỨc https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791341180 3x^2+6xy+3y^2-3z^2
=3(x^2+2xy+y^2-z^2)
=3[(x+y)^2-z^2]
=3(x+y+z).(x+y-z)]]> 2021-10-05 01:35:46 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791341180 Ngọc Anh anh042536 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791342375 3x^2+6xy+3y^2-3z^2
=(3x^2+6xy+3y^2-3z^2)
=3(x^2+2xy+y^2-z^2)
=3[(x+y)^2-z^2]
=3(x+y-z)(x+y+z)



]]> 2021-10-05 01:36:14 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791342375 Bảo Lâm lam055735 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791343630 b,x^2-2xy+y^2-z^2
=(x-y)^2-z^2
=(x-y+z) (x-y-z)]]> 2021-10-05 01:36:41 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791343630 Bảo Châu chau050626 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791343794 2021-10-05 01:36:44 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791343794 Vân https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791344098 2021-10-05 01:36:53 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791344098 Khánh Nguyên nguyenkhanhnguyen https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791344496   3x^2 + 6xy + 3y^2 - 3z^2
= 3 (x^2 + 2xy + y^2 - z^2)
= 3 [(x^2+2xy+y^2) -z^2]
= 3 [(x+y)^2 - z^2]
= 3(x+y-z) (x+y+z)]]> 2021-10-05 01:37:02 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791344496 Thảo https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791344564 =3(x^2+2xy+y^2-z^2)
=3((x+y)^2-z^2)
=3(x+y-z)(x+y+z)]]> 2021-10-05 01:37:04 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791344564 Bảo Hân han052107 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791344573 x^2 - 4x + 3
= x^2 – x – 3x + 3
= x(x – 1) – 3(x – 1)
= (x – 1)(x – 3)]]> 2021-10-05 01:37:04 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791344573 Mai Chi chi056575 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791345369 4x^4-9x^2
= x^2(4x^2-9)
x^2(2x-3)(2x+3)]]> 2021-10-05 01:37:22 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791345369 Thu Huyền huyen054478 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791345872 2021-10-05 01:37:34 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791345872 Gia Khoa https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791348756    x^2-4x+3
=x^2-x-3x+3
=(x-3)(x-1)]]> 2021-10-05 01:38:27 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791348756 Kiệt kiet035033 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791350738 x^2-2xy+y^2-z^2+2zt-t^2
=(x^2-2xy+y^2)-(z^2-2zt+t^2)
=(x-y)^2-(z-t)^2
=(x-y-z+t)(x-y+z-t)]]> 2021-10-05 01:39:02 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791350738 Mai Chi chi056575 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791350919 x^2-2xy+y^2-z^2
=(x-y)^2-z^2
=(x-y+z) (x-y-z)]]> 2021-10-05 01:39:06 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791350919 Bảo Châu chau050626 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791352199 2021-10-05 01:39:39 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791352199 Phương Anh anh055122 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791352418 = 3 (x^2 + 2xy + y^2 - z^2)
= 3 [(x^2+2xy+y^2) -z^2]
= 3 [(x+y)^2 - z^2]
= 3(x+y-z) (x+y+z)]]> 2021-10-05 01:39:45 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791352418 Bảo Hân han052107 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791352549 3x2 + 6xy + 3y2 – 3z2
= 3.(x2 + 2xy + y2 – z2)
= 3[(x2 + 2xy + y2) – z2]
= 3[(x + y)2 – z2]
= 3(x + y – z)(x + y + z)
]]> 2021-10-05 01:39:48 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791352549 THU HUYEN huyen054478 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791352801 2021-10-05 01:39:55 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791352801 Ngọc Anh anh042536 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791354609 x^2-2xy+y^2-z^2+2zt-t^2
=(x^2-2xy+y^2)-(z^2-2zt+t^2)
=(x-y)^2-(t+z)^2
=(x-y-t+z)(x+y+t-z)]]> 2021-10-05 01:40:21 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791354609 Nguyễn Lương Anh anh047678 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791356681 2021-10-05 01:40:39 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791356681 Vân https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791357616 2021-10-05 01:41:01 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791357616 Bảo Châu chau050626 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791359661 2021-10-05 01:41:53 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791359661 Nguyễn Lương anh anh047678 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791359707 2021-10-05 01:41:54 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791359707 KIỀU ANH https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791359965 3x^2+6xy+3y^2-3z^2
=3(x^2+2xy+y^2-z^2)
=3[(x+y)^2-z^2]
=3(x+y-z)(x+y+z)

]]> 2021-10-05 01:42:01 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791359965 kiều anh https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791362976 x^2-2xy+y^2-z^2+2zt-t^2
=( x^2-2xy+y^2 )-( z^2-2zt+t^2 )
=( x-y )^2-( t+z )^2
=( x-y-t+z )( x+y+t-z )]]> 2021-10-05 01:43:17 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791362976 Bảo Hân han052107 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791363032 x2 – 2xy + y2 – z2 + 2zt – t2
= (x2 – 2xy + y2) – (z2 – 2zt + t2)
= (x – y)2 – (z – t)2
= [(x – y) – (z – t)][(x – y) + (z – t)]
= (x – y – z + t)(x – y + z –t)
]]> 2021-10-05 01:43:19 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791363032 Gia Khoa https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791371300 Ta có M= (a^3+b^3)-(a^2b+ab^2)
=(a+b)(a^2+ab+b^2)-ab(a+b)
=(a+b)(a^2+b^2)
Thay a=5,75 ; b=4,25 vào M ta có M=(5,75+4,25)(5,75^2+4,25^2)
=511,25
]]> 2021-10-05 01:46:37 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791371300 Trang trang042972 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791373253 2021-10-05 01:47:25 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791373253 Bảo Hân han052107 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791373500 x^2 + 5x – 4xy – 10y + 4y^2
= (x^2 – 4xy + 4y^2) + (5x – 10y)
= (x – 2y)^2 + 5(x – 2y)
= (x – 2y + 5)(x –2y)


]]> 2021-10-05 01:47:31 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791373500 huyen054478 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791377276 2021-10-05 01:48:59 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791377276 huyen054478 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791378032 2021-10-05 01:49:16 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791378032 Nguyễn Hoàng Việt viet047311 https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791383496 Câu abcd]]> 2021-10-05 01:50:40 UTC https://padlet.com/dangthiminhtamtmath91/79wyqgdujklmgoi5/wish/1791383496