It looks like the mathematical expression in the image is:

$\left(\frac{2x^3}{4x-5}\right)^3$

To solve or simplify this expression, you first simplify the fraction inside the parenthesis:

$\frac{2x^3}{4x-5} = \frac{2x^3}{4x-5}$

Since the expression itself doesn't simplify any further without specific values for $x$, the next step is to calculate the cube:

$\left(\frac{2x^3}{4x-5}\right)^3 = \frac{(2x^3)^3}{(4x-5)^3} = \frac{8x^9}{(4x-5)^3}$

The final simplified form of the expression is:

$\frac{8x^9}{(4x-5)^3}$

Would you like to explore this expression further or do you have any questions about the steps taken? Here are a few follow-up questions:

1. What happens to the expression when $x = 0$?
2. How would the expression change if $x = 1$?
3. What are the implications if $x = \frac{5}{4}$, where the denominator becomes zero?
4. How can we find the derivative of this expression?
5. How does the graph of this function look like?

Tip: When working with expressions raised to a power, always consider simplifying the base before applying the exponent to make calculations easier.