# Exam-Style Question on Quadratic Sequence

## A mathematics exam-style question with a worked solution that can be revealed gradually

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Question id: 613. This question is similar to one that appeared on a GCSE Higher paper in 2020. The use of a calculator is allowed.

Here are the first six terms of a quadratic sequence.

$$7, 14, 23, 34, 47, 62,...$$

Find an expression, in terms of $$n$$, for the $$n^{th}$$ term of this sequence.

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If you need more practice try the self-checking interactive exercises called Quadratic and Cubic Sequences.

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