你的题目打错了,应该是:1/(x²-1)-2/(x+1)-1/(x-1)=0
1/[(x+)(x-1)]-2/(x+1)-1/(x-1)=0
1-2(x-1)-(x+1)=0
1-2x+2-x-1=0
3x=2
x=2/3
经检验,x=2/3是原方程的根
你的题目打错了,应该是:1/(x²-1)-2/(x+1)-1/(x-1)=0
1/[(x+)(x-1)]-2/(x+1)-1/(x-1)=0
1-2(x-1)-(x+1)=0
1-2x+2-x-1=0
3x=2
x=2/3
经检验,x=2/3是原方程的根