问题描述: X×y-y^2分之x乘以根号x+X乘以根号y - Xxx根号x-y根号x/y加根号x×y+y 高一 1个回答 分类:数学 2022-07-13 问题解答: 我来补答 (y*根号x+x*根号y)/(xy-y2)-(x+根号xy+y)/(x根号x-y根号y)=(y√x+x√y)/y(x-y)-((x+√xy+y)/((√x)^3-(√y)^3))=(y√x+x√y)/y(x-y)-((x+√xy+y)/((√x-√y)((x+√xy+y)))=(y√x+x√y)/(x-y)-(1/(√x-√y))=((y√x+x√y)-y(√x+√y))/y(x-y)=(y√x+x√y-y√x-y√y))/y(x-y)=(x-y)√y/y(x-y)=√y/y 展开全文阅读