分式化简，初中二年级，数学作业，只有1道题，分式化简，本人坐等求大神⊙▽⊙

Question

如题所述

Answer 1

追答

手写不易，望采纳

追问

肯定采纳

等会

追答

ok

Answer 2

(3-x)/(x-2) / (x-2-(13-4x)/(x-2))
=(3-x)/(x-2) / ((x^2-4x+4-13+4x)/(x-2))
=(3-x)/(x-2) / ((x^2-9)/(x-2))
=-(x-3)/(x-2) / (x^2-9) *(x-2)
=-(x-3)/((x+3)(x-3))
=-1/(x+3)