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The Nth Term of a Quadratic Sequence

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Question 9
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Here are the first 5 terms of a quadratic sequence.

7, 12, 19, 28, 39

Find an expression, in terms of nnn, for the n n\,nth term of this sequence.

[4]

The Nth Term of a Quadratic Sequence Questions

  1. GCSE
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  3. /The Nth Term of a Quadratic Sequence