Question

Simplify: square root of 81+18 align="absmiddle" class="latex-formula">+7

Answer 1

$\sqrt{81 \: + \: 18 \sqrt{7} \: + \: 7}$

• Factor the indicated expression:

$\sqrt{(9 \: + \: \sqrt{7} ) ^{2} }$

• Simplified the index, the root and also the exponent using the number 2.

$\boxed{ \bold{9 \: + \: \sqrt{7} }}$

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