Question

Which of the binomials below is a factor of this trinomial? -3x^2-21x+24 x-4 x+1 x+4 x-1

Answer 1

x-1

Explanation:

A P E X

Answer 2

(x-1)

Explanation:

-3x^2-21x+24

Factor out -3

-3 (x^2 +7x -8)

Factor inside the parentheses

What two terms multiply to -8 and add to 8

8*-1 = -8

8+-1 = 7

-3(x+8)(x-1)