x方-1分之x方-3x+x-1分之2x-1=0

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x方-1分之x方-3x+x-1分之2x-1=0x方-1分之x方-3x+x-1分之2x-1=0x方-1分之x方-3x+x-1分之2x-1=0x方-1分之x方-3x+x-1分之2x-1=0(x²

x方-1分之x方-3x+x-1分之2x-1=0
x方-1分之x方-3x+x-1分之2x-1=0

x方-1分之x方-3x+x-1分之2x-1=0
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)=0
x²-3x+2x²+x-1=0
3x²-2x-1=0
(3x+1)(x-1)=0
3x+1=0 x-1=0
∴x1=-1/3 x2=1
∵x=1方程无意义,舍去.
∴x=-1/3