把-a(x-y)-b(y-x)+c(x-y)分解因式正确的结果是()A.(x-y)(-a-b+c)B.(y-x)(a-b-c)C.-(x-y)(a+b-c)D.-(y-x)(a+b-c)-数学

题目简介

把-a(x-y)-b(y-x)+c(x-y)分解因式正确的结果是()A.(x-y)(-a-b+c)B.(y-x)(a-b-c)C.-(x-y)(a+b-c)D.-(y-x)(a+b-c)-数学

题目详情

把-a(x-y)-b(y-x)+c(x-y)分解因式正确的结果是(  )
A.(x-y)(-a-b+c)B.(y-x)(a-b-c)C.-(x-y)(a+b-c)D.-(y-x)(a+b-c)
题型:单选题难度:中档来源:不详

答案

-a(x-y)-b(y-x)+c(x-y),
=a(y-x)-b(y-x)-c(y-x),
=(y-x)(a-b-c).
故选B.

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