Answer
$-5 \sqrt[3]{5}$
Work Step by Step
The given expression is
$=\sqrt[3]{-625}$
Factor as cube term.
$=\sqrt[3]{-125\cdot 5}$
Use $-125=(-5)^3$.
$=\sqrt[3]{(-5)^3\cdot 5}$
Use product property of cube roots.
$=\sqrt[3]{(-5)^3}\cdot \sqrt[3]{5}$
Simplify.
$=-5 \sqrt[3]{5}$