Final answer:
The reference information provided deals with solving quadratic equations, not function evaluation as the student's question requires. Since the quadratic formulas and examples given do not apply to evaluating functions f(x), g(x), and h(x), I am unable to utilize them to answer the student's query about evaluating expressions with those functions.
Step-by-step explanation:
The student's question involves evaluating expressions using three functions: f(x) = 4x - 9, g(x) = -4x², and h(x) = 5x. However, the provided reference information focuses on solving quadratic equations, which is different from the concept of function evaluation that is required to answer the student's question. Therefore, the reference information regarding quadratic equations and their solutions is not directly applicable to answering the student's query.
To properly evaluate an expression using given functions, you would substitute the variable x with the intended input and apply the function's formula. For instance, if you were asked to evaluate f(x) with a specific value of x, you'd replace x in the formula 4x - 9 with that value and then simplify.
As the reference material is not aligned with the task of evaluating functions and instead deals with quadratic equations, I cannot confidently provide a detailed explanation or example based on the information provided. If you are indeed asking about function evaluation, I would need additional or correct details to provide a correct and valuable response.