Respuesta :

[tex] \bf 5\sqrt{2}+\sqrt{18}\qquad
\begin{cases}
18=2\cdot 3\cdot 3\\
\qquad 2\cdot 3^2
\end{cases}\implies 5\sqrt{2}+\sqrt{2\cdot 3^2}
\\\\\\
5\sqrt{2}+3\sqrt{2}\implies 8\sqrt{2} [/tex]