#### Answer

$|x|$

#### Work Step by Step

Using $\sqrt{x^2}=|x|$, the given expression, $
\sqrt[6]{x^6}
,$ simplifies to
\begin{array}{l}
\sqrt[6]{(x)^6}
\\\\=
|x|
.\end{array}
We put the variable in absolute value bars since it is being raised to an odd power.