![-8\sqrt[3]{63}\Rightarrow(-8\sqrt[3]{63})^{(3)/(2)}=](https://img.qammunity.org/2023/formulas/mathematics/college/se1fc37a4w5rdld4zeufn9qdc9gn7qes54.png)
1) We need to remember that a radical can be rewritten as a power.
2) So in this case, to rewrite it as a square root, we need to raise it to the 3/2 power so that we get an index of 2
![\begin{gathered} ^{} \\ (-8\sqrt[3]{63})^{(3)/(2)}\Rightarrow(-8\cdot63^{(1)/(3)})^{(3)/(2)}=-8^{(3)/(2)}\cdot63^{(1)/(2)}=-8^{(3)/(2)}\sqrt[]{63} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/6bamwr4ja3hsdcj6xorsgcfdoc4h9gwn7z.png)
3) Hence, if we raise it to the 3/2 exponent we can rewrite it as -8 raised to 3/2 times the square root of 63.