Question

Identify the factors of x2 - 4x – 12. 0 (x + 4)(x - 3) O (x - 4)(x + 3) O (x - 2)(x + 6) O (x + 2)(x - 6)

Answer 1

Simplify the equation to obtain the factors of equation.

`\begin{gathered} x^2-4x-12=x^2-6x+2x-12 \\ =x(x-6)+2(x-6) \\ =(x+2)(x-6) \end{gathered}`

So factor of the equation is (x + 2)(x - 6).