七年级数学下册用整式乘法公式的计算题 165.docx
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七年级数学下册用整式乘法公式的计算题165
-2(x+y)2
3(-x+3y)(x-3y)
(mn+)(mn-)-1m2n2
4x2-(2x+4)(2x-4)
(x+y+3z)(x+y-3z)
(+2)2-(-2)2
(-5x+4)(-5x-4)
(7x-1)(7x-1)
(-x-y)2
-2(x-y)2
3(-x-y)(x+y)
(2mn+)(2mn-)-1m2n2
3x2-(x+1)(x-1)
(2x-4y+3z)(2x-4y-3z)
(+3)2-(-3)2
(-2x-4)(-2x-4)
(8x-2)(8x-2)
(-x+2y)2
-(x-y)2
3(-x+2y)(x-2y)
(mn+)(mn-)-2m2n2
3x2-(2x+1)(2x-1)
(4x-4y+z)(4x-4y-z)
(+3)2-(-3)2
(-9x-4)(-9x-4)
(6x+5)(6x-5)
(-x+2y)2
-3(x+y)2
2(-x-3y)(x+3y)
(mn+)(mn-)-3m2n2
6x2-(3x+2)(3x-2)
(3x-y+3z)(3x-y-3z)
(+1)2-(-1)2
(-7x+8)(-7x+8)
(5x+3)(5x+3)
(-x-3y)2
-2(x+y)2
3(-x-2y)(x-2y)
(mn+)(mn-)-1m2n2
3x2-(x+3)(x-3)
(3x+2y+2z)(3x+2y-2z)
(+3)2-(-3)2
(-3x+3)(-3x+3)
(3x+8)(3x-8)
(-x-3y)2
-2(x-y)2
2(-x-3y)(x-3y)
(mn+)(mn-)-5m2n2
x2-(2x+4)(2x-4)
(x+y+z)(x+y-z)
(+1)2-(-1)2
(-2x+5)(-2x+5)
(2x-7)(2x-7)
(-x+y)2
-(x+y)2