Question

$\sqrt{48 + \sqrt{256} }$

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Answer 1

$\sqrt{48 + \sqrt{256} }$

$\sqrt{48 + 16}$

$\sqrt{64}$

$= 8$

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Answer 2

$\sf \sqrt{48 + \sqrt{256} } = \sqrt{48 + 16} = \sqrt{64} = 8$