Question

como resolvo isso???

Answer 1

$\sqrt{ \frac{8}{9} } + \sqrt{ \frac{18}{9} } = \frac{ \sqrt{8} }{ \sqrt{9} } + \frac{ \sqrt{18} }{ \sqrt{9} } = \\ = \frac{2 \sqrt{2} }{3} + \frac{3 \sqrt{2} }{3} = \frac{5 \sqrt{2} }{3}$