解分式方程4/(x+1)-1/(x^2-1)=0
问题描述:
解分式方程4/(x+1)-1/(x^2-1)=0
答
4/(x+1)-1/(x^2-1)=0
同时乘以 x^2 -1
4x -4 -1 =0
4x =5
x= 5/4