Here are the first 5 terms of a quadratic sequence.
5 11 19 29 41
Verify that n2+3n+1n^2 + 3n + 1n2+3n+1 is an expression, in terms of nnn, for the n n\,nth term of this sequence.
201 exam-style questions on OCR GCSE Maths The Nth Term of a Quadratic Sequence. Each one has a worked solution and a mark scheme showing where the marks go.