[tex]\displaystyle\bf\\Ex. 11/26\\\\k)~~~\sqrt{243}=\sqrt{81\times3}=\boxed{\bf9\sqrt{3}}\\\\l)~~~\sqrt{432}=\sqrt{144\times3}=\boxed{\bf12\sqrt{3}}\\\\m)~~~\sqrt{125}=\sqrt{25\times5}=\boxed{\bf5\sqrt{5}}\\\\n)~~~\sqrt{500}=\sqrt{100\times5}=\boxed{\bf10\sqrt{5}}\\\\o)~~~\sqrt{160}=\sqrt{16\times10}=\boxed{\bf4\sqrt{10}}[/tex]
