解:2/(x+1)+3/(x-1)=6/(x^2-1)乘以(x^2-1)=(x+1)(x-1)得2(x-1)+3(x+1)=62x-2+3x+3=65x=6-15x=5x=1检验:x=1时,分母为0,即x=1是增根所以原方程无解
两边同时乘(x+1)(x-1)可得2(x-1)+3(x+1)=62x-2+3x+3=6移项,可得:5x=5 x=1我很辛苦的
2/(x+1)+3/(x-1)=3/(x-1)-3/(x+1),x=-1