$\left(x^{3}\right)^{2}$

Step 1 ：The question is asking for the result of raising a cubic function to the power of 2. In other words, it's asking for the square of a cubic function.

Step 2 ：To solve this, we can use the power of a power rule in mathematics, which states that \((a^{m})^{n} = a^{mn}\).

Step 3 ：In this case, \(a\) is \(x\), \(m\) is 3, and \(n\) is 2. So, we can rewrite the expression as \(x^{3*2}\).

Step 4 ：Final Answer: \(\boxed{x^{6}}\)