Answer
$a^{11}$
Work Step by Step
We are given the expression $a^{2}\times a^{9}$.
We can use the product rule to simplify, which holds that $a^{m}\times a^{n}=a^{m+n}$.
In this example, $m=2$ and $n=9$.
$a^{2+9}=a^{11}$
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.