Question

решите подробно очень ​

Answer 1

$\sqrt{18 - \sqrt{288} } ( \sqrt{2} + 1) = 6 - 3 \sqrt{2} \\ 1) \sqrt{18 - \sqrt{288} } = \sqrt{18 - 12 \sqrt{2} } \\ 2) (\sqrt{18 - 12 \sqrt{2} } ) \times ( \sqrt{2} + 1) = 6 - 3 \sqrt{2}$