分解因式 x²-2xy+y²-2x+2y+1

2024-12-14 02:55:59
推荐回答(3个)
回答1:

x²-2xy+y²-2x+2y+1
=(x-y)²-2(x-y)+1
=(x-y-1)²

回答2:

x²-2xy+y²-2x+2y+1
=(x-y)²-2(x-y)+1
=(x-y-1)²

回答3:

提个1/2即可