3m+2n=6,8^m乘4^n等于多少
问题描述：
3m+2n=6,8^m乘4^n等于多少
答
4^n
答
64
答
8^m×4^n
=2^3m × 2^2n
=2^(3m+2n)
=2^6
=64
答
8^m=2^(3m)_
4^n=2^(2n)
8^m乘4^n＝2^(3m+2n)=2^6=64