Answer
$7^{40}$
Work Step by Step
Using the laws of exponents, the given expression, $
(7^8)^5
,$ simplifies to
\begin{array}{l}\require{cancel}
7^{8(5)}
\\\\=
7^{40}
.\end{array}
Note that we are raising something to the 8th power to the 5th power. Because we are raising a power to a power, we multiply the exponents.
