Question

10+ V20 + 40-75-√3o
$\sqrt{10 + \sqrt{20 + \sqrt{40 - \sqrt{5 - \sqrt{80} } } } }$
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Answer 1

$\sqrt{10 + \sqrt{20 + \sqrt{40 - \sqrt{5 - 4\sqrt{5} } } } } </p><p>$