The quadratic formula iswhere and correspond with the values of a quadratic equation written in standard form, It is derived by completing the square on the general standard form equation. The quadratic formula can be used to find solution(s) to quadratic equations.
In the quadratic formula, the term under the radical sign is called the discriminant.
It's possible to use the discriminant to determine the number of solutions a quadratic equation has. The solutions to a quadratic equation correspond to the zeros of the parabola.
Solve the equation using the quadratic formula.