\(\sqrt{0}=0\)

\(\sqrt{36}=6\)

\(\sqrt{144}=12\)

\(\sqrt{49}-\sqrt{16}=7-4=3\)

\(2\sqrt{16}+9\sqrt{100}=2⋅4+9⋅10=98\)

\(\sqrt{16}⋅\sqrt{4}=4⋅2=8\)

\((-9\sqrt{3})^2=(-9)^2⋅\sqrt{3}^2=81⋅3=243\text{.}\)

\((4\sqrt{8}+2)(4\sqrt{8}-2)=(4\sqrt{8})^2-2^2=16⋅8-4=128-4=124\text{.}\)

\((\sqrt{3})^2=3\text{.}\)

\(3(\sqrt{8})^2=3⋅8=24\text{.}\)

\(8\sqrt{10}-6\sqrt{10}=2\sqrt{10}\)

\(4\sqrt{5}⋅6\sqrt{2}=24\sqrt{10}\)

\({\sqrt{30} \over \sqrt{3}}=\sqrt{10}\)

\({12\sqrt{18} \over 6\sqrt{3}}={12 \over 6}⋅{\sqrt{18} \over \sqrt{3}}=2\sqrt{6}\)

\({14\sqrt{54} \over 7\sqrt{6}}={14 \over 7}⋅{\sqrt{54} \over \sqrt{6}}=2⋅\sqrt{9}=2⋅3=6\)