Posted by alejandro on Monday, September 10, 2012 at 3:52pm.
Write the first three terms of a geometric sequence that has a first term of a = 7 and a common ratio, r, that satisfies r2 = 9.

math30  Steve, Monday, September 10, 2012 at 6:16pm
r^2 = 9
r = 3 or 3
terms: 7 21 63 . . .
or: 7 21 63 . . .