Work Step by Step
$\sqrt 72$ = $\sqrt 36 *2 $ , 36 is the greatest perfect-square factor of 72. Therefore, $\sqrt 36$ * $\sqrt 2$ (using the multiplication property). The answer is $6\sqrt 2$.
You can help us out by revising, improving and updating this answer.Update this answer
After 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.