两边同时×(1-X)(X-3) 得:(X-3)(3-2X)-(1-X)(X-3)=(1-X)(X+2) 3X-2X方-9+6X-X+3X+X方-3X=X+2-X方-2X X=4分之3 求采纳!!!格式也是对的!!
先通分:(3-2x-1+x)/(1-x)=(x+2)/(x-3) 交叉相乘得:(2-x)(x-3)=(x+2)(1-x) 有:(x-2)(x-3)=(x+2)(x-1) x^2-5x-6=x^2+x-2 x=4/3