2个回答
2013-04-13
展开全部
6/x²-1 — 1=3/x-1
6/(x+1)(x-1)-1-3/(x-1)=0
6/(x+1)(x-1)-(x+1)(x-1)/(x+1)(x-1)-3(x+1)/(x+1)(x-1)=0
[6-(x+1)(x-1)-3(x+1)]/(x+1)(x-1)=0
6-(x+1)(x-1)-3(x+1)=0
6-x²+1-3x-1=0
x²+3x-6=0
x=-3/2±根号33
6/(x+1)(x-1)-1-3/(x-1)=0
6/(x+1)(x-1)-(x+1)(x-1)/(x+1)(x-1)-3(x+1)/(x+1)(x-1)=0
[6-(x+1)(x-1)-3(x+1)]/(x+1)(x-1)=0
6-(x+1)(x-1)-3(x+1)=0
6-x²+1-3x-1=0
x²+3x-6=0
x=-3/2±根号33
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