Answer:
B.
Step-by-step explanation:
First
Outer
Inner
Last
3x*3x=9x^2
3x*-8=-24x
6*3x=18x
6*-8=-48
9x^2-24x+18x-48
9x^2-6x-48
Each term is 0.19 more than its predecessor. You have


So, we can assume that the next terms will be


A; first equation is the red one and second is the blue one
The result of adding the answer together is 1