Functions: How to Solve for F(x)

For the function find f'(x) using the definition of the derivative.

Using Function Notation - What is f(x)?

Solve f(x) = 0 Example - Functions and Algebra

Factor a Polynomial Function and solve f(x)=0

Using f(x) to Find Values

Solving a Functional Equation | f(x)+f(x-1)=x^2

Finding F as a function of x

How to find f(-x) -f(x) , f(x+h) for Polynomials