You have to find two numbers whose sum is -18, and whose product is 3. Experimenting with different combinations of factors for 18, you find that this is 6 and -3, so the factors are (x+6)(x-3).
(3x+1)(x+2)
(2x + 7)(x - 2)
(x + 1)(x - 4)
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3(x2 + 3x + 1)
(3x - y)(3x - 5y) and (2x + 1)(2x + 11)
(x - 3)(x + 6)
(3x+1)(x+2)
(5x - 4)(3x + 5)
(2x + 7)(x - 2)
No. It is 9x, which is a monomial.
(3X + 9) (X + 9)
(5x - 4)(3x + 5)
(3x - 2)(2x + 6) or 2(3x - 2)(x + 3)
(x + 8)(x - 5)
9x+3
(x + 8)(x - 5)