因式分解:(x的平方-y的平方)+(x-y)的平方

2024-11-18 02:51:38
推荐回答(1个)
回答1:

(x²-y²)+(x-y)²
=(x+y)(x-y)-(x-y)²
=(x-y)[(x+y)-(x-y)]
=(x-y)(x+y-x+y)
=2y(x-y)