V b b 2 4 a c 2 a. X b b 2 4ac 2a. In elementary algebra the quadratic formula is a formula that provides the solutions to a quadratic equationThere are other ways of solving a quadratic equation instead of using the quadratic formula such as factoring direct factoring grouping AC method completing the square graphing and others.
Substitute the values in the quadratic formula.
The discriminant is used to determine how many solutions the quadratic equation has. The discriminant tells us whether the solutions are real numbers or complex numbers as well as how many solutions of each type to expect. The Quadratic Formula latex xfrac-bpm sqrtb2-4ac2alatex is found by completing the square of the quadratic equation latex latex. X 2 -b b2-4ac2a 5 12 2.