Question

5

$\sqrt{16 + 9 - ( \sqrt{16 + \sqrt{9)} } }$
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Answer 1

$\sqrt{16} = 4\\\sqrt{9} = 3$

$\sqrt{16+9(\sqrt{16+\sqrt{9)} } } = \sqrt{25.(\sqrt{16+3}) } = \sqrt{25} . \sqrt{\sqrt{19} } = 5\sqrt{\sqrt{19} }$

Resposta: $5\sqrt{\sqrt{19} }$