以知a^m=3和a^n=2 求a^2m=3n=_____a^3m-2n=_____
问题描述：
以知a^m=3和a^n=2 求a^2m=3n=_____a^3m-2n=_____
答
a^2m-3n=a^2m/a^3n=(a^m)^2/(a^n)^3=9/8
a^3m-2n=a^3m/a^2n=(a^m)^3/(a^n)^2=27/4