Question

\(\sqrt{3-\sqrt{ }5}.\sqrt{8}\) = ? 

 

Answer 1

\(\sqrt{3-\sqrt{5}}.\sqrt{8}=\sqrt{24-8\sqrt{5}}=\sqrt{\left(2\sqrt{5}-2\right)^2}=\left|2\sqrt{5}-2\right|=2\sqrt{5}-2\)