The first term is and common ratio is r = 2.
(Apply nth term of a geometric sequence formula: )
(1st term)
(2nd term)
(Simplify)
(3rd term)
(Simplify)
(4th term)
(Simplify)
(5th term)
(Simplify)
The first five terms of the geometric sequence is 8, 16, 32, 64, 128.