Question

Решить выражение, срочно

Answer 1

$( \sqrt[4]{2} - \sqrt[4]{8} ) ^{2} - 3 \sqrt{2} = \\ = \sqrt{2} - 2 \sqrt[4]{2 \times 8} + \sqrt{8} - 3 \sqrt{2} = \\ = \sqrt{2} - 2 \sqrt[4]{ {2}^{4} } + 2 \sqrt{2} - 3 \sqrt{2} = \\ = - 2 \times 2 = - 4$