Question

na igualdade
$\sqrt{8} + \sqrt{18} = n \sqrt{2}$
qual o valor de n?

Answer 1

$\sqrt{8} = \sqrt{2.2.2} =2\sqrt{2}$

$\sqrt{18} =\sqrt{2.3.3} =3\sqrt{2}$

-----------------------------------------------------------

$2\sqrt{2} +3\sqrt{2} = n\sqrt{2}$

$2\sqrt{2} +3\sqrt{2} = 5\sqrt{2}$

n=5