Question

If f(x) = 3x² -1 and g(x)= x+2, find (f +g)(x).

OA. 4x² +1
OB. 3x² -2
OC. 3x²+x+1
D. 3x²+x-1

Answer 1

C. 3x² + x + 1.

Explanation:

(f +g)(x) = 3x²-1 + x+2

= 3x² + x + 1.