Question

Qual é o valor de (9+√6)²+(9-√6)² ?

Answer 1

(9+√6)²+(9-√6)²

81 + 18√6 + 6 + 81 - 18√6 + 6

162 + 12

174

Answer 2

$(9+ \sqrt{6})^2+(9- \sqrt{6})^2 \\ \\ 3(29 + 6 \sqrt{6}) + 87 -18 \sqrt{6} \\ \\ 87 + 18 \sqrt{6} + 87 - 18\sqrt{6} \\ \\ 87 + 87 => 174$