What is the factorization of the trinomial below?

x^2-3x - 18

(x - 6) (x + 3)

Step-by-step explanation:

Consider the factors of the constant term ( - 18) which sum to give the coefficient of the x - term ( - 3)

The factors are - 6 and + 3, since

- 6 * 3 = - 18 and - 6 + 3 = - 3, thus

x² - 3x - 18 = (x - 6) (x + 3) ← in factored form