七年级数学下册用整式乘法公式的计算题 209.docx
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七年级数学下册用整式乘法公式的计算题209
(-x+y)2
-2(x-y)2
(-x-2y)(x+2y)
(2mn+)(2mn-)-6m2n2
2x2-(2x+1)(2x-1)
(2x-3y+3z)(2x-3y-3z)
(+2)2-(-2)2
(-6x+9)(-6x+9)
(9x+4)(9x+4)
(-x+y)2
-3(x-y)2
3(-x-y)(x+y)
(mn+)(mn-)-5m2n2
x2-(3x+4)(3x-4)
(2x-y+z)(2x-y-z)
(+2)2-(-2)2
(-2x+3)(-2x+3)
(2x-2)(2x+2)
(-x-y)2
-3(x-y)2
4(-x-2y)(x-2y)
(mn+)(mn-)-2m2n2
4x2-(x+2)(x-2)
(2x-y+3z)(2x-y-3z)
(+2)2-(-2)2
(-8x+9)(-8x+9)
(7x-4)(7x+4)
(-x+2y)2
-2(x-y)2
2(-x-y)(x+y)
(3mn+)(3mn-)-6m2n2
x2-(2x+4)(2x-4)
(2x+y+z)(2x+y-z)
(+2)2-(-2)2
(-8x-5)(-8x-5)
(6x+7)(6x-7)
(-x-y)2
-(x-y)2
(-x+3y)(x+3y)
(3mn+)(3mn-)-3m2n2
5x2-(2x+2)(2x-2)
(4x+2y+z)(4x+2y-z)
(+3)2-(-3)2
(-8x-7)(-8x-7)
(3x+6)(3x-6)
(-x-y)2
-(x-y)2
3(-x-3y)(x+3y)
(2mn+)(2mn-)-6m2n2
3x2-(x+2)(x-2)
(4x+2y+3z)(4x+2y-3z)
(+2)2-(-2)2
(-2x-5)(-2x-5)
(4x-8)(4x-8)
(-x-3y)2