Answer
$18$
Work Step by Step
Using the properties of radicals, the given expression, $
\sqrt{324}
,$ evaluates to
\begin{array}{l}\require{cancel}
\sqrt{(18)^2}
\\\\=
18
.\end{array}
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.