Answer
$3\sqrt [3] 4$
Work Step by Step
$\sqrt [3] 108=\sqrt [3] 27\times\sqrt [3] 4=3\sqrt [3] 4$
We know that $\sqrt[3] 27=3$, because $3^{3}=27$.
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.