Question

For the function f(x)= x2-4 evaluate f(x+h)

Answer 1

x² + 2hx + h² - 4

Explanation:

To evaluate f(x + h), substitute x = x + h into f(x), that is

fx + h)

= (x + h)² - 4 ← expand (x + h)² using FOIL

= x² + 2hx + h² - 4