北师大版七年级数学下册整式的乘法练习题 18Word文档格式.docx
《北师大版七年级数学下册整式的乘法练习题 18Word文档格式.docx》由会员分享,可在线阅读,更多相关《北师大版七年级数学下册整式的乘法练习题 18Word文档格式.docx(8页珍藏版)》请在冰豆网上搜索。
3x2-(x+4)(x-4)
(5-3t-2)(5-3t+2)
(4-y)2-(4+y)2
(-m+1)(-m-1)
(-
x+6y)2
-8(
2(x+2y)(x-2y)
3x2-(-x+1)(-x-1)
(x+2y+z)(x+2y-z)
(2n+3m)2-(2n-3m)2
(mn+4)(mn-4)
x+3y)2
-6(
4(-2a-2b)(-2a+2b)
(mn+4)(mn-4)-m2
5x2-(4-x)(4+x)
(-2a-b+c)(-2a-b-c)
(x+2y)2-(x-2y)2
(-2x+3)(-2x-3)
x+4y)2
-2(
2[(x+2y)-1][(x+2y)+1]
(-m+1)(-m-1)-m2
5x2-(-2x+3)(-2x-3)
(2n+3m-4)(2n+3m+4)
2(mn+4)(mn-4)
2x2-(x+4)(x-4)
(-2-2a+b)(-2-2a-b)
3(2n+3m)(2n-3m)
(4-m)(4+m)-m2
5x2-(2y+3x)(2y-3x)
[(x+2y)-1][(x+2y)+1]
[(x+2y)-1]2-[(x+2y)+1]2
(x+2y)(x-2y)
3(-2-2a)(-2+2a)
(5-3t)2-(5+3t)2
(-2a-2b)(-2a+2b)
x+5y)2
5x2-(-x+1)(-x-1)
(mn+4-n)(mn+4+n)
(-m+1)2-(-m-1)2
2(5-3t)(5+3t)
2x2-(5-3x)(5+3x)
(-m+1+n)(-m+1-n)
(2n+3m)(2n-3m)
3(mn+4)(mn-4)
4x2-(-x+1)(-x-1)
(-2-2a)2-(-2+2a)2
x+2y)2
3(-m+1)(-m-1)
2x2-[(x+2y)-1][(x+2y)+1]
(-2x+3)2-(-2x-3)2
(4-y)(4+y)
4x2-(4-x)(4+x)
4(5-3t)(5+3t)
(-2m-2n)(-2m+2n)-m2
3x2-(5-3x)(5+3x)
(-2x+3-y)(-2x+3-y)
(-2-2a)(-2+2a)