题目内容

把-6(x-y)3-3y(y-x)3分解因式,结果是(  )
A.-3(x-y)3(2-y)B.-(x-y)3(6-3y)C.3(x-y)3(y+2)D.3(x-y)3(y-2)
-6(x-y)3-3y(y-x)3
=-6(x-y)3+3y(x-y)3
=-3(x-y)3(2-y).
故选A.
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