Question

If f(x) = 3x2 + 2 and g(x) = x2 – 9, find (f – g)(x).

Answer 1

2x^2 +11

Explanation:

f(x) = 3x^2 + 2 and g(x) = x^2 – 9

(f – g)(x) = 3x^2 + 2 -( x^2 – 9)

Distribute the minus sign

3x^2 + 2 - x^2 + 9

Combine like terms

2x^2 +11