题目

(x³-x²y分之5xy)四次方÷(-x²y分之5)四次方乘(xy分之y-x)³

提问时间：2021-03-02

答案

[5xy/(x³-x²y)]⁴÷(-5/x²y)⁴*[(y-x)/xy]³=[5xy/x²(x-y)]⁴*(x²y/5)⁴*[(y-x)/xy]³=[5xy/x²(x-y)*(x²y/5)]⁴*[(y-x)/xy]³=[xy²/...