SOLUTION: Find the nth term of the geometric sequence. -4, 20, -100, ...

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Question 633551: Find the nth term of the geometric sequence.
-4, 20, -100, ...
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

-4, 20, -100,...

Geometric, r = -5 

 a%5Bn%5D+=+-4%28-5%29%5E%28n-1%29