Question

$( \sqrt{9 - 4 \sqrt{2} } + \sqrt{9 + 4 \sqrt{2} }) ^{2}$
Пожалуйста решите​

Answer 1

$( \sqrt{9 - 4 \sqrt{2} } + \sqrt{9 + 4 \sqrt{2} } ) {}^{2} = (2 \sqrt{2} - 1 + 1 + 2 \sqrt{2} ) {}^{2} = (4 \sqrt{2} ) {}^{2} = 16 \times 2 = 32$