Given the following function:
[tex]y=2\log ^3\text{ x}[/tex][tex]\begin{gathered} y=2\log ^3\text{ x} \\ x=2\log ^3(y) \\ x=2\log ^3=3^{\frac{x}{2}} \\ =3^{\frac{x}{2}} \end{gathered}[/tex](If it isn't the given function in the question please feel free to reopen a new session, wasn't able to confirm with you on the function)