Answer:

Explanation:
When you have a power then a root like that, you have to divide the power by the root.
So, in this case, you have q square (x²) and a cubic root (³√).
So, you take your square (2) and divide it by the cube (3), to get a new power of 2/3.
Let's verify it with x = 2
![\sqrt[3]{2^(2) } = \sqrt[3]{4} = 1.59\\\\\\2^(2/3) = 1.59](https://img.qammunity.org/2020/formulas/mathematics/high-school/djhtexb550bhd8rn6h4ie161rcdrwwzkv4.png)
So, both expressions equal the same thing, it means they're equivalent.