Answer
$x^5$,
$x^4$,
and $x^5$.
Work Step by Step
$=\sqrt {x^{10}}$
We can write.
$=\sqrt[2] {x^{10}}$
Use $\sqrt [n] x=x^{\frac{1}{n}}$.
$=\left ( x^{10} \right )^{\frac{1}{2}}$
Use $(a)^m=a^m$.
$=x^{\frac{10}{2}}$
$=x^5$.
$=\sqrt[3] {x^{12}}$
Use $\sqrt [n] x=x^{\frac{1}{n}}$.
$=\left ( x^{12} \right )^{\frac{1}{3}}$
Use $(a)^m=a^m$.
$=x^{\frac{12}{3}}$
$=x^4$.
$=\sqrt[6] {x^{30}}$
Use $\sqrt [n] x=x^{\frac{1}{n}}$.
$=\left ( x^{30} \right )^{\frac{1}{6}}$
Use $(a)^m=a^m$.
$=x^{\frac{30}{6}}$
$=x^5$.
