Question

Please need help on this

Answer 1

A

Explanation:

x^2 + x - 12

12 = 4*3,

We have -12 so 4 or 3 should be negative.

+ x , coefficient = +1 , so we have +4 - 3 = +1

(x+4)(x-3)

We can check:

(x+4)(x-3) = x^2 + 4x - 3x -12 = x^2 + x - 12