Question

What is the factored form of x2 − x − 20?

Answer 1

(x - 5)(x + 4)

Explanation:

x^2 − x − 20

- 20 = -5 * 4

and

- 5 + 4 = -1

So

x^2 − x − 20 = (x - 5)(x + 4)