Question

Please simplify each radical, and then simplify the expression by combining like radicals.

3√18 + 2√27 + √8 + √81

Answer 1

This is how you have to solve these kinds of questions.

\[ 3√18 + 2√27 + √8 + √81\]

Break them up in their specific roots.

\[ 3 \sqrt{9*2} + 2 \sqrt{3*3*3} + \sqrt{2*2*2} + \sqrt{9*9}\]

Find their square roots

\[ 9 \sqrt{2} + 6 \sqrt{3} + 2 \sqrt{2} + 9\]

Combine like terms

\[ 11 \sqrt{2} + 6 \sqrt{3} + 9\]

Understood? :)

Answer 2

got it @AkashdeepDeb