x的2次方【x-y】+y的2次方【y-x】 因式分解

2025-02-28 13:20:45
推荐回答(2个)
回答1:

解:原式=x²(x-y)-y²(x-y)
=(x²-y²)(x-y)
=(x+y)(x-y)²

回答2:

(x-y)(x^2-y^2)=(x-y)(x+y)(x-y)=(x+y)(x-y)^2