Answer:
-240
Step-by-step explanation:
500 - 800 + 60
= -300 + 60 = -240
(2x²<span> + 3x - 4) + (8 - 3x) + (-5x</span>²<span> + 2)
= </span> 2x² + 3x - 4 + 8 - 3x - 5x² + 2
= -3x² + 6
= 3(-x² + 2)
Answer:
A) Divide 20 by 2 and then add 8 to the result
Step-by-step explanation:

Yes. It is a Geometric sequence!
Common ratio = a2/a1 = 12/6 = 2
In short, Your Answer would be Option A
Hope this helps!