x方-1分之x方-3x+x-1分之2x-1=0
问题描述：
x方-1分之x方-3x+x-1分之2x-1=0
答
x方-1分之x方-3x+x-1分之2x-1=0(x²-3x)/(x²-1)+(2x-1)/(x-1)=0(x²-3x)/(x-1)(x+1)+(2x-1)(x+1)/(x-1)(x+1)=0x²-3x+2x²+x-1=03x²-2x-1=0(3x+1)(x-1)=03x+1=0 x-1=0∴x1=-1/3 x2=1∵x=1...