Given the function $f(x) = 2x^2 + 5\sqrt{x - 2}$, substituting $x = 3$ yields:

$f(3) = 23$

Would you like further clarification or have any questions? Here are five related questions to consider:

1. What would the value of $f(4)$ be using the same function?
2. How would the function change if $f(x) = 3x^2 + 4\sqrt{x - 2}$?
3. How can you determine the domain of the given function?
4. What happens to the function when $x < 2$?
5. How does the square root function affect the overall shape of the graph?

Tip: When working with functions involving square roots, always ensure the expression inside the square root is non-negative to determine the domain correctly.