计算:(x-y)^2*(x+y)^3*(-x-y)^3*(y-x)^4
1个回答
(x-y)^2*(x+y)^3*(-x-y)^3*(y-x)^4
=-(x-y)^2*(x+y)^3*(x+y)^3*(x-y)^4
=-(x-y)^6*(x+y)^6
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