4乘以2的2n次方乘以2的n-1次方怎么算
问题描述：
4乘以2的2n次方乘以2的n-1次方怎么算
答
4*2^(2n)*2^(n-1)
=2^2*2^(2n)*2^(n-1)
=2^(2+2n+n-1)
=2^(3n+1)
答
4*2^2n*2^(n-1)=2^2*2^2n*2^(n-1)=2^(3n+1)
答
4乘以2的2n次方乘以2的n-1次方
=2的2次方乘以2的2n次方乘以2的n-1次方
=2的2+2n+n-1次方
=2的3n+1次方