Answer
$7a^{2}\sqrt {a}$
Work Step by Step
$\sqrt {49a^{5}}=\sqrt {49a^{4}a}=7a^{2}\sqrt {a}$
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.