QUESTION IMAGE
Question
which of these equations can be used to solve $x^2 - 4x - 12 = 0$ by factoring?
a) $(x + 2)(x - 6) = 0$
b) $(x - 2)(x + 6) = 0$
c) $(x + 3)(x - 4) = 0$
d) $(x - 3)(x + 4) = 0$
Step1: Factorizar el trinomio
Para factorizar \(x^2 - 4x - 12\), buscamos dos números que sumen \(-4\) y multipliquen \(-12\). Estos números son \(2\) y \(-6\) (ya que \(2 + (-6)= -4\) y \(2\times(-6)= -12\)).
Step2: Escribir la factorización
Así, \(x^2 - 4x - 12=(x + 2)(x - 6)\). Entonces, la ecuación \(x^2 - 4x - 12 = 0\) se puede escribir como \((x + 2)(x - 6)=0\).
Snap & solve any problem in the app
Get step-by-step solutions on Sovi AI
Photo-based solutions with guided steps
Explore more problems and detailed explanations
A) \((x + 2)(x - 6)=0\)