remember \(\sqrt{ \frac{x}{y} } = \frac{ \sqrt{x} }{ \sqrt{y} }\)
and
\(\sqrt{ab^2} =b \sqrt{a}\)
\(\sqrt{ \frac{32}{5} } = \frac{ \sqrt{(4^2)(2)} }{ \sqrt{5} } = \frac{ 4\sqrt{2} }{ \sqrt{5} }\)
times whoe thing by \(\frac{ \sqrt{5} }{ \sqrt{5} }\)
\(\frac{4 \sqrt{10} }{5}\)
