Two marks exercise problems VII — task. Mathematics State Board, Class 10.

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Find the first four terms of the sequence whose

$n^{\text{th}}$ terms are given by

$a_n = 2n^2 - 6$

$4$ , $-1$ , $-12$ and $-26$
$4$ , $8$ , $16$ and $38$
$-4$ , $2$ , $12$ and $26$
$-4$ , $-12$ , $-26$ and $-52$

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