What is he missing number in the synthetic-division array?

Answer:
? = 7
Step-by-step explanation:
The value replacing ? has to add to the 2 above it to produce the 9 below it.
That is 2 + ? = 9 ⇒ ? = 7
Answer:
- 9
Step-by-step explanation:
just took the quiz and the answer is -9