Question

7. What are the factors of x2 - x - 30?

a. (x + 1)(x - 30)
b. (x + 5)(x-6)
c. (x + 6)(x - 5)
d. (x - 1)(x +30)

Answer 1

B (x+5)(x-6)

Explanation:

if you do the foil method on (x+5)(x-6) you get

x^2 5x -30

-6x

if you combine you get

x2 - x - 30