Answer
$y^{3}$
Work Step by Step
$\sqrt[3] (y^{9})=y^{3}$
We know this because $(y^{3})^{3}=y^{3\times3}=y^{9}$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.