## Intermediate Algebra for College Students (7th Edition)

$|2|x$
As per the product rule, we have $\sqrt[n] {pq}=\sqrt[n] {p}\sqrt[n] {q}$ Given: $\sqrt[4] {16x^4}$ Which can be written as: $\sqrt[4] {16x^4}=\sqrt[4] {16}\sqrt[4] {x^4}$ or, $=\sqrt[4] {2^4}\sqrt[4] {x^4}$ or, $=|2|x$