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