Here are the first 5 terms of a quadratic sequence.
kk+6k+14k+24k+36k \quad k+6 \quad k+14 \quad k+24 \quad k+36kk+6k+14k+24k+36
Find an expression, in terms of n n\,n and kkk, for the n n\,nth term of this sequence.
201 exam-style questions on Eduqas GCSE Maths The Nth Term of a Quadratic Sequence. Each one has a worked solution and a mark scheme showing where the marks go.