Answer
$a^2$
Work Step by Step
A way to solve that is:
$\dfrac{a^3}{a}=a^{(3-1)}=a^2$
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.