SOLUTION: If x = 1 and x = -8, then form a quadratic equation. Again, I have to work this problem backwards in order to figure it out, can someone help me with this one also? I am lost!

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: If x = 1 and x = -8, then form a quadratic equation. Again, I have to work this problem backwards in order to figure it out, can someone help me with this one also? I am lost!      Log On


   

Question 171188: If x = 1 and x = -8, then form a quadratic equation. Again, I have to work this problem backwards in order to figure it out, can someone help me with this one also? I am lost!
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
if r is a root (solution) of a quadratic equation, then x-r is a factor

(x-1)(x+8)=0 __ FOILing __ x^2+7x-8=0