#### Answer

$\dfrac{y\sqrt[4]{13y^3}}{x^3}$

#### Work Step by Step

RECALL:
The quotient rule:
$\sqrt[n]{\dfrac{a}{b}}=\dfrac{\sqrt[n]{a}}{\sqrt[n]{b}}$
where
$\sqrt[n]{a}$ and $\sqrt[n]{b}$ are real numbers and $b\ne0$
Use the quotient rule above to obtain:
$=\dfrac{\sqrt[4]{13y^7}}{\sqrt[4]{x^{12}}}$
Factor each radicand so that at least one factor is a perfect fourth power to obtain:
$=\dfrac{\sqrt[4]{y^4(13y^3)}}{\sqrt[4]{(x^3)^4}}$
Simplify to obtain;
$=\dfrac{y\sqrt[4]{13y^3}}{x^3}$