Write:
('x' minus one root) times ('x' minus the other root) = 0
Then multiply the left side out and you have your quadratic equation.
You can write a quadratic equation given its roots by following these steps: set up the factors based on the roots, expand them, and combine like terms to get the standard form. The standard form will be in the format a x 2 + b x + c = 0 .
;