Answer: here you go i tried my best
Step-by-step explanation:
Sorry that is not a linear model. There is not a constant rate of change. Are you sure you copied it correctly
The answer is most likely C
<span> -5a^2-19a^2-5a-8+12a^2-22-14a-2a
first gather all same powers
-5a</span>²-19a²+12a²-5a-14a-2a-8-22
-12a²-21a-30
-3(6a²+7a-+10)