Question

If f(x) =x/4 - 3 and g(x) = 4x2 + 2x - 4, find (f +g)(x).

A. x2-12
B. 4x2 +Zx-7
C. 4x2+2x+1
D. 4x2+x-7

Answer 1

4x^2 +9x/4 -7

Explanation:

f(x) =x/4 - 3

g(x) = 4x^2 + 2x - 4

(f +g)(x) = x/4 - 3 + 4x^2 + 2x - 4

= 4x^2 + 8x/4+x/4 -7

= 4x^2 +9x/4 -7