Respuesta :

Solution

[tex]\begin{gathered} \sqrt{125}+3\sqrt{5} \\ \\ \text{ since }\sqrt{125}=\sqrt{25\times5}=\sqrt{25}\times\sqrt{5}=5\sqrt{5} \\ \\ \Rightarrow\sqrt{125}+3\sqrt{5}=5\sqrt{5}+3\sqrt{5}=8\sqrt{5} \end{gathered}[/tex]

The final answer is

[tex]8\sqrt{5}[/tex]

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