2x2 + 17x - 9 = 2x2 + 18x - x - 9 = 2x(x + 9) - 1(x + 9) = (2x - 1)(x + 9)
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(2x + 7)(x - 2)
(2x + 1)(x + 3) are the factors.
Doesn't factor evenly, use quadratic
7x(3x3 - 2x2 + 5x + 1)
If that's 2x2, the answer is (x + 2)(x2 + 4)