Answer
$\dfrac{x^{27}}{27}$
Work Step by Step
$(3^{-1}x^{9})^3=(\dfrac{1}{3}x^{9})^3=(\dfrac{x^{9}}{3})^3=\dfrac{x^{9*3}}{3^3}=\dfrac{x^{27}}{27}$
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.