#### Answer

$\sqrt[3]{0.1x^2}$

#### Work Step by Step

Using $\sqrt[a]{x}\sqrt[a]{y}=\sqrt[a]{xy}$, the given expression, $
\sqrt[3]{0.5x}\sqrt[3]{0.2x}
,$ simplifies to
\begin{array}{l}\require{cancel}
\sqrt[3]{0.5x(0.2x)}
\\\\=
\sqrt[3]{0.1x^2}
.\end{array}