Q-ID: 75150
A-ID:
The sum of the first `n` terms of a sequence is given by `2n2 + 6n`.
Find the value of `a` and `b`.
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Q-ID: 75150
A-ID:
The sum of the first `n` terms of a sequence is given by `2n2 + 6n`.
Find the value of `a` and `b`.
You did not answer this question.