3(n + 2) - 3n + 6, 7(n - 4) - 7n - 28, -4(n + 4) - -4n - 4, -2(n - 8) - -2n + 16, -6(2 + 3) - 30, n(n + 8) - n2 + 8n, (n + 2)(n + 3) - n2 + 5n + 6, (n - 2)(n - 3) - n2 - 5n + 6, (n + 6)(n - 4) - n2 +2n -24, (3n + 4)(n + 4) - 3n2 + 16n + 16, (2n + 1)(2n - 2) - 4n2 - 2n - 2, 7(5 + n) - 7n + 35,

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