Răspuns :
[tex]\sqrt{316-120\sqrt{6}} = \sqrt{4(79-30\sqrt{6})} =\\ \\ = 2\sqrt{79-30\sqrt{6}} = 2\sqrt{(5-3\sqrt{6})^2} = 2|5-3\sqrt{6}| =\\ \\ = 2(3\sqrt{6}-5) = \boxed{6\sqrt{6}-10}[/tex]
[tex]\sqrt{316-120\sqrt{6}} = \sqrt{4(79-30\sqrt{6})} =\\ \\ = 2\sqrt{79-30\sqrt{6}} = 2\sqrt{(5-3\sqrt{6})^2} = 2|5-3\sqrt{6}| =\\ \\ = 2(3\sqrt{6}-5) = \boxed{6\sqrt{6}-10}[/tex]