七年级数学下册用整式乘法公式的计算题 373.docx
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七年级数学下册用整式乘法公式的计算题373
2(-x-3y)(x+3y)
(mn+)(mn-)-2m2n2
6x2-(2x+1)(2x-1)
(x-3y+3z)(x-3y-3z)
(+3)2-(-3)2
(-6x-4)(-6x-4)
(3x-4)(3x-4)
(-x-3y)2
-2(x-y)2
3(-x+2y)(x+2y)
(2mn+)(2mn-)-5m2n2
2x2-(x+4)(x-4)
(x-3y+2z)(x-3y-2z)
(+5)2-(-5)2
(-9x+5)(-9x-5)
(8x+7)(8x-7)
(-x-2y)2
-2(x+y)2
2(-x+y)(x+y)
(mn+)(mn-)-4m2n2
6x2-(x+1)(x-1)
(2x-3y+3z)(2x-3y-3z)
(+5)2-(-5)2
(-9x+4)(-9x-4)
(2x+8)(2x+8)
(-x+2y)2
-3(x-y)2
2(-x+y)(x+y)
(2mn+)(2mn-)-2m2n2
4x2-(x+4)(x-4)
(2x+4y+2z)(2x+4y-2z)
(+2)2-(-2)2
(-8x-5)(-8x+5)
(5x+2)(5x+2)
(-x+2y)2
-3(x-y)2
4(-x-2y)(x-2y)
(2mn+)(2mn-)-5m2n2
2x2-(2x+4)(2x-4)
(4x+y+2z)(4x+y-2z)
(+5)2-(-5)2
(-8x+8)(-8x-8)
(2x-4)(2x-4)
(-x+y)2
-2(x-y)2
3(-x-3y)(x+3y)
(mn+)(mn-)-6m2n2
6x2-(2x+1)(2x-1)
(2x+3y+2z)(2x+3y-2z)
(+5)2-(-5)2
(-4x-3)(-4x-3)
(x-4)(x+4)
(-x+y)2
-(x+y)2
4(-x+y)(x+y)