Find the product of all constants t such that the quadratic x^2 + tx - 18 can be facgtored in the form (x + a)(x + b), where a and b are integers.
-18 =
-18 * 1 ⇒ t = -17
18 * - 1 ⇒ t = 17
9 * -2 ⇒ t = 7
-9 * 2 ⇒ t = -7
6 * -3 ⇒ t = 3
-6 * 3 ⇒ t = -3
