Answer:
A. (f - g)(x) = 4^x - 5x - 14
Step-by-step explanation:
(f - g)(x) = 4^x - 8 -(5x + 6)
(f - g)(x) = 4^x - 8 -5x - 6
(f - g)(x) = 4^x - 5x - 14
Answer is A.
