Answer:
12a³+2a²+23a+18
Step-by-step explanation:
(3a+2)(4a²-2a+9)=
12a³-6a²+27a+8a²-4a+18=
If you need more explanation, reply to this answer.
3, 1, -1, -2, -3, -3, -1
I used the rule they gave up top. Hope this helps :)
C
