Question

calcule a expressão✓8+√18​

Answer 1

Resposta:

$\sqrt{8} + \sqrt{18}$

$\sqrt{8} = \sqrt{2^{2} *2}$$= 2\sqrt{2}$

$\sqrt{18} = \sqrt{2*3^{2} } = 2 \sqrt{2}$

$\sqrt{8} + \sqrt{18} = 2 \sqrt{2} + 3\sqrt{2} = (2+3)\sqrt{2} = 5\sqrt{2}$