Question

question number five ​

Answer 1

$((1 - \sqrt{2} ) - \frac{1}{1 - \sqrt{2} })power3 \\ \frac{1 + 2 - 2 \sqrt{2} - 1 }{1 - 2} \\( { \frac{2(1 - \sqrt{2)} }{1 - \sqrt{2} } }) ^{3}$

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