47
The two square numbers with a difference of 21 are 25 and 4. This is because (5^2 = 25) and (2^2 = 4), and their difference is (25 - 4 = 21).
The common difference is 13 because 21-8=13, 34-21=13, and 34-47=13.
21 is the answer
14
-21
47
21
89 - 21 = 68
The two square numbers with a difference of 21 are 25 and 4. This is because (5^2 = 25) and (2^2 = 4), and their difference is (25 - 4 = 21).
It is 55 minus 21 = 34
The common difference is 13 because 21-8=13, 34-21=13, and 34-47=13.
10% difference.
21 is the answer
21
14
17.