Answer
$\dfrac{16x^{16}}{81y^{20}}$
Work Step by Step
$\bigg(\dfrac{2x^4}{3y^5}\bigg)^4$
$\dfrac{2^4x^{4\times 4}}{3^4y^{5\times 4}}$
$\dfrac{16x^{16}}{81y^{20}}$
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.