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Introductory Olympiad Algebra - Nested Square Roots

Algebra Level 2

Simplify

\[ \sqrt{ 23 - 6 \sqrt{ 6 - 4 \sqrt{2} } } . \]

\[ 3 + \sqrt{2} \] \[ 2 + \sqrt{2} \] \[ 5 - \sqrt{2} \] \[ 4 - \sqrt{2} \]

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by Calvin Lin

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