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Introductory Olympiad Algebra - Nested Square Roots

Algebra Level 2

Simplify

$\sqrt{ 23 - 6 \sqrt{ 6 - 4 \sqrt{2} } } .$

4 - \sqrt{2}

5 - \sqrt{2}

2 + \sqrt{2}

3 + \sqrt{2}

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by Calvin Lin

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