Question

Answer 1

\(=\sqrt{150}-\sqrt{10}=\sqrt{10}\left(\sqrt{15}-1\right)\)

Answer 2

\(=\sqrt{5}.\sqrt{5}.\sqrt{2}.\sqrt{3}-\sqrt{2}.\sqrt{5}=\sqrt{2}.\sqrt{5}.\left(\sqrt{5}.\sqrt{3}-1\right)=\sqrt{10}.\left(\sqrt{15}-1\right)\)