Question

Solve for x: x^2 + x – 12 = 0.
A. x = 3 or –4
B. x = -3 or -4
C. x = 3 or 4
D. x = 5

Answer 1

Use the quadratic forumula to solve for the roots of this equation.

Answer 2

(x-3)(x+4) first factor
x-3=0 x+4=0
x=3 x=-4
3 and -4 are your answers