3(x-y)³(y-x)²2(x-y)=?(急~)

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3(x-y)³(y-x)²2(x-y)=?(急~)
3(x-y)³(y-x)²2(x-y)=?(急~)

3(x-y)³(y-x)²2(x-y)=?(急~)
原式=3(x-y)^3(x-y)^2*2(x-y)
=6(x-y)^6