SOLUTION: If x=1 and x= -8 then form a quadratic equation. Could you please give me some help with this, I thought I needed to know three things to make a quadratic equation so I am confuse

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: If x=1 and x= -8 then form a quadratic equation. Could you please give me some help with this, I thought I needed to know three things to make a quadratic equation so I am confuse      Log On


   



Question 154175: If x=1 and x= -8 then form a quadratic equation. Could you please give me some help with this, I thought I needed to know three things to make a quadratic equation so I am confused.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
If x=1 and x= -8 then form a quadratic equation. Could you please give me some help with this, I thought I needed to know three things to make a quadratic equation so I am confused.
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If x=1, then x-1=0
If x=-8, then x+8=0
Since they're both zero, you can multiply them and still get 0.
(x-1)*(x+8) = 0
x%5E2+%2B+7x+-+8+=+0