Question

Simplify
a) (3√2+√3)^2

Answer 1

(3√2+√3)^2

$= (3 \sqrt{2} ) ^{2} + ( \sqrt{3} )^{2} + 2(3 \sqrt{2} )( \sqrt{3} ) \\ = 18 + 3 + 6 \sqrt{6} \\ = 21 + 6 \sqrt{6}$