If a2= 18 and a4= 8, find two possible common ratios. then, write two sequences lhaving five terms each.

The sequences of the given terms are required.

The sequences are

and

The terms are

Dividing the equations

Common ratio

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common ratio = a4/a3 = a3/a2

8/a3 = a3/18

(a3)^2 = 8 * 18

(a3)^2 = 144

a3 = 12 or a3 = -12

common ratio = 8/12 or common ratio = 8/(-12)

common ratio = 2/3 or common ratio = -2/3

12 or -12

1,918

step-by-step explanation: