## Elementary Algebra

$5\sqrt[3]{a^2b}$
Using the properties of radicals, the given expression, $\sqrt[3]{125a^2b} ,$ simplifies to \begin{array}{l}\require{cancel} \sqrt[3]{125\cdot a^2b} \\\\= \sqrt[3]{(5)^3\cdot a^2b} \\\\= 5\sqrt[3]{a^2b} .\end{array} Note that all variables are assumed to have positive values.