(x-y)^3*(x-y)^2*(y-x)
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(x-y)^3*(x-y)^2*(y-x)(x-y)^3*(x-y)^2*(y-x)(x-y)^3*(x-y)^2*(y-x)=(x-y)^3*(x-y)^2*[-(x-y)]=-(x-y)^(3+2
(x-y)^3*(x-y)^2*(y-x)
(x-y)^3*(x-y)^2*(y-x)
(x-y)^3*(x-y)^2*(y-x)
=(x-y)^3*(x-y)^2*[-(x-y)]
=-(x-y)^(3+2+1)
=-(x-y)^6
(x-y)^3*(x-y)^2*(y-x)
=-(x-y)^3*(x-y)^2*(x-y)
=-(x-y)^(3+2+1)
=-(x-y)^6
-(x-y)^6
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