x2 – 3x – 18
This is a quadratic expression that can be factored as:
(x - 6)(x + 3)
To check, you can use the FOIL method:
(x - 6)(x + 3) = x^2 + 3x - 6x - 18 = x^2 - 3x - 18
Therefore, the factored form of the expression x^2 - 3x - 18 is (x - 6)(x + 3).