Answer:
1. -9
2. -2
3. -3
4. 2 (positive)
Step-by-step explanation:
positive + negative= positive
negative + positive =negative
positive +positive =positive
negative +negative =negative
hope you like it ( ' - ' )
All of them are wrong except for the third one
Answer:
-x²+9x+4
Step-by-step explanation:
Hope this helps!