SOLUTION: can you help me with this sample problem it is ax^2+bx+c=0 the solutions is -7, 1

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: can you help me with this sample problem it is ax^2+bx+c=0 the solutions is -7, 1       Log On


   

Question 486849: can you help me with this sample problem it is

ax^2+bx+c=0 the solutions is -7, 1
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

ax%5E2%2Bbx%2Bc=0 the solutions is x1=-7 and x2=+1

f%28x%29=%28x-x1%29%28x-x2%29..plug in first solutions: x1=-7 and x2=+1

f%28x%29=%28x%2B7%29%28x-1%29

f%28x%29=%28x%5E2-x%2B7x-7%29

f%28x%29=x%5E2%2B6x-7
or
x%5E2%2B6x-7=0