七年级数学下册用整式乘法公式的计算题 36.docx
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七年级数学下册用整式乘法公式的计算题36
(-5x-9)(-5x+9)
(6x-3)(6x-3)
(-x-2y)2
-2(x-y)2
(-x-2y)(x+2y)
(2mn+)(2mn-)-4m2n2
3x2-(2x+1)(2x-1)
(2x+2y+z)(2x+2y-z)
(+4)2-(-4)2
(-7x-3)(-7x+3)
(3x+4)(3x-4)
(-x-3y)2
-3(x-y)2
4(-x+2y)(x-2y)
(2mn+)(2mn-)-4m2n2
2x2-(3x+4)(3x-4)
(x-4y+2z)(x-4y-2z)
(+5)2-(-5)2
(-8x-1)(-8x-1)
(7x+6)(7x+6)
(-x+3y)2
-(x-y)2
4(-x+3y)(x-3y)
(2mn+)(2mn-)-5m2n2
2x2-(x+1)(x-1)
(2x-4y+3z)(2x-4y-3z)
(+3)2-(-3)2
(-7x+6)(-7x+6)
(4x+6)(4x-6)
(-x+3y)2
-(x-y)2
4(-x-3y)(x-3y)
(3mn+)(3mn-)-2m2n2
x2-(x+1)(x-1)
(x+3y+2z)(x+3y-2z)
(+1)2-(-1)2
(-3x-7)(-3x-7)
(8x+6)(8x-6)
(-x-y)2
-2(x+y)2
3(-x-y)(x-y)
(2mn+)(2mn-)-4m2n2
5x2-(x+4)(x-4)
(2x-y+3z)(2x-y-3z)
(+2)2-(-2)2
(-2x-7)(-2x+7)
(6x-7)(6x-7)
(-x-3y)2
-2(x-y)2
3(-x+2y)(x+2y)
(3mn+)(3mn-)-3m2n2
6x2-(2x+3)(2x-3)
(2x+2y+z)(2x+2y-z)
(+2)2-(-2)2
(-7x+8)(-7x-8)