因式分解:(x-y)²-x+y
2个回答
展开全部
(x-y)²-x+y
= (x-y)² + (-1)x + (-1)(-y)
= (x-y)² - (x-y) (根据分配律ab+ac=a×(b+c)提出后两项里的负号)
= (x-y)(x-y) + (-1)(x-y)
= (x-y)(x-y-1) (提出x-y)
= (x-y)² + (-1)x + (-1)(-y)
= (x-y)² - (x-y) (根据分配律ab+ac=a×(b+c)提出后两项里的负号)
= (x-y)(x-y) + (-1)(x-y)
= (x-y)(x-y-1) (提出x-y)
来自:求助得到的回答
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
(x-y)²-x+y
= (x-y)² - (x-y)
= (x-y)(x-y-1)
= (x-y)² - (x-y)
= (x-y)(x-y-1)
追问
你能把确切步骤告诉我吗?
追答
(x-y)²-x+y
= (x-y)² + (-1)x + (-1)(-y)
= (x-y)² - (x-y) (根据分配律ab+ac=a×(b+c)提出后两项里的负号)
= (x-y)(x-y) + (-1)(x-y)
= (x-y)(x-y-1) (提出x-y)
本回答被提问者采纳
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询