2m+3n=4 4m的次方乘8n的次方等于?
问题描述：
2m+3n=4 4m的次方乘8n的次方等于?
答
2^2n*2^3n=2^(2m+3n)=16
答
4m的次方乘8n的次方等于
=(4^m)*(8^m)
=[2^(2m)]*[2^(3m)]
=2^(2m+3m)
=2^4
=16