Solve the following equations for $x$:

(a) $\sqrt{2 x} = 8$         $x =$

(a) $\sqrt[3]{5 x} = -5$         $x =$

Note: Write your answer in exact form using square roots or radical notation if necessary. Click here for help writing square roots. If there is more than one correct answer, enter your answers as a comma separated list. If the equation has no real solution, write "No Solution."