(x-y)^3(y-x)^4 咋么做咧给个过程

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(x-y)^3(y-x)^4咋么做咧给个过程(x-y)^3(y-x)^4咋么做咧给个过程(x-y)^3(y-x)^4咋么做咧给个过程(y-x)^4>=0所以(y-x)^4=(x-y)^4(x-y)^3

(x-y)^3(y-x)^4 咋么做咧给个过程
(x-y)^3(y-x)^4 咋么做咧
给个过程

(x-y)^3(y-x)^4 咋么做咧给个过程
(y-x)^4>=0
所以(y-x)^4=(x-y)^4
(x-y)^3(y-x)^4
=(x-y)^7

(x-y)^3(y-x)^4 =(x-y)^3(x-y)^4
=(x-y)^(3+4)=(x-y)^7

(x-y)^3(y-x)^4=(x-y)^(3+4)=(x-y)^7

(x-y)^3(y-x)^4
=(x-y)^3(x-y)^4
=(x-y)^(3+4)
=(x-y)^7