PLEASE help me:( i'm desperate (and dumb): factor 2n^(3)+7n^(2)-2n-7

1 answer:

4 0

$x {}^{2} (2x + 7) - (2x + 7) \\ (2x + 7)(x { }^{2} - 1) \\ (2x + 7)(x - 1)(x + 1)$

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