(x-y)的10次方/(y-x)的3次方/(x-y)

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(x-y)的10次方/(y-x)的3次方/(x-y)

(x-y)的10次方/(y-x)的3次方/(x-y)
(x-y)的10次方/(y-x)的3次方/(x-y)

(x-y)的10次方/(y-x)的3次方/(x-y)
原式=(x-y)的10次方/[-(x-y)的3次方]/(x-y)
=-(x-y)的10-3-1)次方
=-(x-y)的6次方

(x-y)的10次方/(y-x)的3次方/(x-y) =-(x-y)的8次方

(x-y)^10/(y-x)^3/(x-y)
=(x-y)^10/-(x-y)^(3)/(x-y)
=-(x-y)^(10-3)/(x-y)
=-(x-y)^7/(x-y)
=-(x-y)^6

(x-y)的10次方/[-(x-y)的3次方]/(x-y)=-(x-y)的10-3-1)次方
=-(x-y)的6次方