SOLUTION: how to solve quadratic equation?

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: how to solve quadratic equation?       Log On


   

Question 470225: how to solve quadratic equation?
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
*Quadratic equation ax%5E2%2Bbx%2Bc=0
A) Use the quadratic formula x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
**If you have equation x%5E2%2Bc=0%7D%7D%2C+then+%7B%7B%7Bx%5E2=-c=> x=%2B-sqrt%28-c%29
***If you have equation x%5E2%2Bbx=0, then x%28x%2Bb%29=0, so
x=0 or x%2Bb=0
x1=0 or x2=-b