(x-y)(x²+y²-2xy)+2(y-x)²因式分解

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(x-y)(x²+y²-2xy)+2(y-x)²因式分解

(x-y)(x²+y²-2xy)+2(y-x)²因式分解
(x-y)(x²+y²-2xy)+2(y-x)²因式分解

(x-y)(x²+y²-2xy)+2(y-x)²因式分解
(x-y)(x²+y²-2xy)+2(y-x)²
=(x-y)(x-y)²+2(x-y)²
=(x-y)²(x-y+2)

原式=(x-y)(x-y)²+2(x-y)²
=(x-y)²(x-y+2)