Question

X-2乘以X-3分之2X-5减X-3分之1

Answer 1

（2x-5）/(x-2)(x-3)-1/(x-3) =（2x-5）/(x-2)(x-3)-(x-2)/(x-2)(x-3) =（2x-5-x+2)/(x-2)(x-3) =（x-3)/(x-2)(x-3) =1/(x-2)