4乘2的N次方乘2的N-1次方等于几啊?

2025-01-04 11:34:22
推荐回答(3个)
回答1:

2的2次方乘2的N次方乘2的N-1次方
=2的2+N+N-1次方
=2的2N+1次方

回答2:

=4×2^n×(2^n÷2)
=2×2^n×2^n
=2^(2n+1)

回答3:

2