3. For the function f (x) = 4x2 – 25, a) find f(-1) - %3D %3D b) find all x when f (x) = 0

Given two functions f(x) = x² – 3x and g(x) = x + 13, find the following. a) f(– 2) + g( – 2) - b) f(– 2) – 9( – 2) = c) g( – 2) · f( – 2) =

If f(x) = x – 4x² and h ± 0, find the following and simplify. %3D (a) f(x + h) = f(x + h) – f(x) (b)

Consider the functions Ax) = 3x² – x – 4 and g(x) = 2– 5x. Find (a) g(f(-4)) and (b) simplify completely an equation for f (g(x)). 21.