Question

qual a resposta de √32 + 3√2- √8

Answer 1

$32 = 2^2.2^2.2$

$8 = 2^2.2$

então podemos escrever :

$\sqrt{2^2.2^2.2} + 3 \sqrt{2} - \sqrt{2^2.2}$

$\sqrt{2^2} . \sqrt{2^2} . \sqrt{2} +3 \sqrt{2} - \sqrt{2^2} . \sqrt{2}$

$4. \sqrt{2} +3 \sqrt{2} - 2 \sqrt{2}$

$7. \sqrt{2} - 2 \sqrt{2}$

$5 \sqrt{2}$