Question

Write the next three terms of the geometric sequence -2, 4, -8, 16, …

Answer 1

-32, 64, -128

Explanation:

Each term is -2 times the previous term. This means the next term is

(-2) x 16 = -32

Then,

(-2) x (-32) = 64

and lastly,

(-2) x 64 = -128