化简 (x^2-2xy+y^2-1)/(x-y-1)
5个回答
2011-01-17 · 知道合伙人教育行家
关注
展开全部
(x^2-2xy+y^2-1)/(x-y-1)
=[(x-y)^2-1]/(x-y-1)
=(x-y+1)(x-y-1)/(x-y-1)
=(x-y+1)
=[(x-y)^2-1]/(x-y-1)
=(x-y+1)(x-y-1)/(x-y-1)
=(x-y+1)
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^2-2xy+y^2-1)/(x-y-1)
=((x-y)^2-1)/(x-y-1) =(x-y-1)(x-y+1)/(x-y-1) =x-y+1
=((x-y)^2-1)/(x-y-1) =(x-y-1)(x-y+1)/(x-y-1) =x-y+1
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+1
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