3m+2n=3,求8的M次方×4的n次方

问题描述:

3m+2n=3,求8的M次方×4的n次方

8的M次方×4的n次方=(2^3)^m × (2^2)^n=2^(3m)× 2^(2n )=2^(3m+2n)=2^3=8