nth term = 5 +8n
The next term is 45 because the numbers are increasing by increments of 3 5 7 9 and then 11
tn = n2 + 9, n = 1,2,3,...
5n+1
3n^2 - n + 1
nth term = 5 +8n
tn = n2 + 9, n = 1,2,3,...
The next term is 45 because the numbers are increasing by increments of 3 5 7 9 and then 11
The GCF is 9.
(18 + 36) + (45 - 27) = 54 + 18 = 72
5n+1
18 and 36 is 18 23 and 29 is 1 4 5 and 20 is 1 18 36 and 45 is 9 so 18 and 36
3n^2 - n + 1
Divide the sequence by 5 and the answer becomes very obvious: 1, 4, 9, 16,...N2 So, 5, 20, 45, 80,...5N2
18, 36, 54
Nine
9 18 27 36 45 54 63 72 81 909, 18, 27, 36, 45, 54