Answer:
hi i dont understan hahahag
Answer:
This website is not an answer key website. You ask a question and we respond. Write your question and ill reply. Thanks for the points.
Step-by-step explanation:
(f-g)(x) = x²+6x - (7-x)
(f-g)(x) = x² + 6x - 7 + x
(f-g)(x) = x² + 7x - 7
(f-g)(9) = 9² + 7*9 - 7
(f-g)(9) = 81 + 63 - 7
(f-g)(9) = 137