ANSWER
[tex]x=27[/tex]EXPLANATION
We want to solve the radical equation:
[tex]\sqrt[3]{x}=3[/tex]To do this, find the cube of both sides of the equation:
[tex]\begin{gathered} (\sqrt[3]{x})^3=3^3 \\ x=3^3 \\ x=27 \end{gathered}[/tex]That is the solution.