Đáp án + Giải thích các bước giải:
$\sqrt{50}=\sqrt{25.2}=5\sqrt{2}$
$\sqrt{162}=\sqrt{81.2}=9\sqrt{2}$
$\sqrt{338}=\sqrt{169.2}=13\sqrt{2}$
$\sqrt{48}=\sqrt{16.3}=4\sqrt{3}$
$\sqrt{192}=\sqrt{64.3}=8\sqrt{3}$
$\sqrt{20}=\sqrt{4.5}=2\sqrt{5}$
$\sqrt{180}=\sqrt{36.5}=6\sqrt{5}$
$\sqrt{500}=\sqrt{100.5}=10\sqrt{5}$
$\sqrt{150}=\sqrt{25.6}=5\sqrt{6}$
$\sqrt{486}=\sqrt{81.6}=9\sqrt{6}$
$\sqrt{112}=\sqrt{16.7}=4\sqrt{7}$
$\sqrt{448}=\sqrt{64.7}=8\sqrt{7}$