Answer:
(x - 5) and (x + 4)
Step-by-step explanation:
To find the 2 numbers, factorise the given expression
Consider the factors of the constant term (- 20) which sum to give the coefficient of the x- term (- 1)
The factors are - 5 and + 4, since
- 5 × 4 = - 20 and - 5 + 4 = - 1, thus
x² - x - 20 = (x - 5)(x + 4)
The 2 numbers are x - 5 and x + 4
