根号4m^5n^2+8m^4n^3(化简）
问题描述：
根号4m^5n^2+8m^4n^3(化简）
答
4m^5n^2+8m^4n^3
4m^4n^2(m+2n)
根号4m^5n^2+8m^4n^3
= 根号(4m^4n^2)*根号(m+2n)
=2m^2*|n|*根号(m+2n)