X²-3X分之5X-7=X-1分之2+X-2分之3X²-3X分之5X-7=(X-1)(X-2)分之[2(X-2)+3(X-1)]X²-3X分之5X-7=(X²-3X+2)分之[5X-7](X²-3X)(5X-7)-(X²-3X+2)(5X-7)=0(X²-3X-X²+3X-2)(5X-7)=...X²-3X+2分之5X-7=X-1分之2+X-2分之3 解分式方程我打错了方程右边=X-1分之2+X-2分之3=(X-1)(X-2)分之[2(X-2)+3(X-1)]=(X²-3X+2)分之[5X-7]方程左边=X²-3X+2分之5X-7方程左边=方程右边则方程的解是x≠1且x≠2的所有实数