Question

Find an explicit rule for the nth term of the sequence. 9, 36, 144, 576, ...

Answer 1

Something like (n4)
N representing the number before. For example, if n=9 then (9*4)=36.
Hope it makes since for you. I know there might be more to it, but that's what I know off the top of my head.

Answer 2

Answer:

an= 9* 4^n-1

Step-by-step explanation:

an= a1 r^ n-1

a1=9

r=4