Exponents: ACT Math Practice Question

Try the following ACT math practice question that tests your understanding of manipulating exponential expressions.

If $2^x = n$, what does $4^{x+1}$ equal in terms of $n$?

1. $\quad 8n$
2. $\quad 2n^2$
3. $\quad 4n^2$
4. $\quad n^2+4$
5. $\quad 2n^2+8$

Choice C

Video Explanation