先通分。分母变成(x-2)*(x+3)原式=-5/(x-2)*(x+3)=-5/6然后左右分子分母交叉相乘x=0,x=5
通分,分母变成一样的,(x-2)*(x-3)原式={(x+3)(x-3)-(x+2)(x-2)}/(x-2)(x-3) =-5/(x-2)(x-3)=-5/6(x-2)*(x-3)=6x^2-5x+6=6x(x-5)=0x=0,x=5