Question 965107
2x^2 - 22x - 24 = 2 * (x^2 - 11x - 12) = 2 * (x-12) * (x+1)


you confirm by multiplying the factors out to see if you get back to the original equation.


(x-12) * (x+1) is equal to x^2 + x - 12x - 12 which is equal to x^2 - 11x - 12.


(x^2 - 11x - 12) * 2 = 2x^2 - 22x - 24.


looks like we did good.


here's a lesson on how to factor that might be helpful.


<a href = "http://www.purplemath.com/modules/factquad.htm" target = "_blank">http://www.purplemath.com/modules/factquad.htm</a>