Answer:A. - 512
Step-by-step explanation:
Here is how I solved this problem:
-First take -128 and divide it by 16
(You should get -8)
-Then take -8 and cube root it
(You should get 2)
You have found your multiplier, which is 2.
After this you can start from -128 and multiply by 2, 2 times to get to the 8th term which is -512.
me know if you have any further questions.