Question

$2 \times \sqrt{ (7 - \sqrt\frac{1}{16} \times 3 } )$
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Answer 1

Olá, boa noite!

$2\times\sqrt{7-\frac{1}{4}\times3}=\\\\2\times\sqrt{7-\frac{3}{4}}=\\\\2\times\sqrt{\frac{28}{4}-\frac{3}{4}}=\\\\2\times\sqrt{\frac{25}{4}}=\\\\2\times\frac{5}{2}=\\\\\boxed{5}$

Espero ter ajudado.

Bons estudos! :)