Answer:
A
Step-by-step 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
