问题标题:
(1)-4x²yz-12xy²z+4xyz(2)-1/2-x²-y³+2x²y^4z(3)(a+b)²-(a+b)(4)6(m+n)²-2(m+n)(5)x(x-y)(a-b)-y(y-x)(b-a)(6)2x(1+a²)-1-a²(7)32a^5b^4-16a^3b^5+24a^b^4
问题描述:
(1)-4x²yz-12xy²z+4xyz(2)-1/2-x²-y³+2x²y^4z(3)(a+b)²-(a+b)
(4)6(m+n)²-2(m+n)(5)x(x-y)(a-b)-y(y-x)(b-a)
(6)2x(1+a²)-1-a²(7)32a^5b^4-16a^3b^5+24a^b^4
(8)a(1-a)-(a-1)^2
宁通回答:
都可以用提取公因式法
如:(5)x(x-y)(a-b)-y(y-x)(b-a)=(x-y)(a-b)(x-y)=)=(x-y)²(a-b)
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