The expression given is $(x^5)^5$.

To simplify this, you can apply the power of a power rule, which states that $(a^m)^n = a^{m \cdot n}$. In this case:

$(x^5)^5 = x^{5 \cdot 5} = x^{25}$

So, the simplified form of the expression is:

$x^{25}$

Would you like further details, or do you have any questions?

Here are 5 related questions to deepen your understanding:

1. How do you simplify expressions with multiple variables, such as $(x^3 y^2)^4$?
2. What is the difference between the power of a power rule and the product of powers rule?
3. How do you simplify $(x^n)^m$ for general values of $n$ and $m$?
4. Can the power of a power rule be applied to roots, such as $\sqrt{x^4}$?
5. How does exponentiation affect negative exponents, like $(x^{-2})^3$?

Tip: Always remember to check the rules of exponents carefully when dealing with powers of powers or products of powers to avoid errors.