V9-4V5+V14-6V5 помогите

[latex]\sqrt{9-4\sqrt5}+\sqrt{14-6\sqrt5}=\sqrt{(2-\sqrt5)^2}+\sqrt{(3-\sqrt5)^2}=\\\\=|2-\sqrt5|+|3-\sqrt5|=-(2-\sqrt5)+(3-\sqrt5)=1\\\\P.S.\\Tak\; kak\; \; (2-\sqrt5)\approx 2-2,24\ \textless \ 0\; ,to\; |2-\sqrt5|=-(2-\sqrt5)=\sqrt5-2\\\\Tak\; kak\; \; (3-\sqrt5)\approx 3-2,24\ \textgreater \ 0\; ,\; to\; |3-\sqrt5|=3-\sqrt5[/latex]