Question

Which expression is equivalent to 2 to the power of 4 times 2 to the power of negative 7?

Answer 1

Answer:

$2^{-3}$

Step-by-step explanation:

Using the rule of exponents

$a^{m}$ × $a^{n}$ ⇔ $a^{(m+n)}$, thus

$2^{4}$ × $2^{-7}$ = $2^{(4-7)}$ = $2^{-3}$