Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals" etc.
The answer is likely to be 3*20 ± 11 or 60 ± 11 = 71 or 49.
3n(n+1] + 5 is the nth term
The sequence is Un = 19 - 3n so the 20th term is 19 - 3*20 = 19 - 60 = -41
(9n2 - 121) = (3n + 11) (3n - 11)
3n-2
The 'n'th term is [ 4 - 3n ].
11
The nth term is 2 + 3n.
The nth term is 3n+2 and so the next number will be 17
3n(n+1] + 5 is the nth term
The sequence is Un = 19 - 3n so the 20th term is 19 - 3*20 = 19 - 60 = -41
(9n2 - 121) = (3n + 11) (3n - 11)
It is: 3n+2
3n-2
The 'n'th term is [ 4 - 3n ].
The 'n'th term is [ 4 - 3n ].
The 'n'th term is [ 4 - 3n ].
What is the 2nd term of 3n-2?