Simplify $\sqrt[3]{x \sqrt[3]{x}}$. Express your answer in simplest radical form in terms of x.
+486 @ElectricPavlov Nice solution! However, I believe the asker requested the answer in "simplest radical form".
+486 Moving everything inside the outer radical into the inner radical, we get $\sqrt[3]{\sqrt[3]{x^4}}$. Simplifying square roots, you get $\boxed{\sqrt[9]{x^4}}$
