I have the question : simplify $$\frac{X^{1/3} \cdot X^{4/3}}{X^{-1/3}}.$$

So I have simplified as much as I could and got $$\frac{\sqrt[3] X \cdot \sqrt[3]{X^4}}{1/\sqrt[3] X}.$$

However the solutions says that the final answer should be $X^2$.