teamzomaxx3016 teamzomaxx3016
  • 03-11-2017
  • Mathematics
contestada

Solve for x by factoring. Check your answers. Can you check to see if I'm correct?

4) x^2 - 4x - 12 = 0

(x - 6)(x + 2)

Respuesta :

kritter1
kritter1 kritter1
  • 03-11-2017
If you want to check if your answer is correct, expanding it all out will help!

(x-6)(x+2)=0 <-- Use FOIL tactic 

x²+2x-6x-12=0

x²-4x-12=0 

As you can see, this is identical to the initial equation given. The x values would be 6 and -2, as seen from the factored equation. 

Hope I helped :) 
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