10a(x-y)平方-5b(y-x) x(a-x)(a-y)-y(x-a)(y-a) ab(a-b)-a(b-b)
问题描述:
10a(x-y)平方-5b(y-x) x(a-x)(a-y)-y(x-a)(y-a) ab(a-b)-a(b-b)
ab(a-b)-a(b-b) x(a-x)(a-y)-y(x-a)(y-a 分解因式
答
ab(a-b)-a(b-a)
=ab(a-b)+a(a-b)
=a(a-b)(b+1)
x(a-x)(a-y)-y(x-a)(y-a )
= x(a-x)(a-y)-y(a-x)(a-y )
=(x-y)(a-x)(a-y)
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