Educator

Solving Equations Using the Quadratic Formula

• You can use the Quadratic Formula to solve any quadratic equation.

• If you do not see an easy way to factor a quadratic equation, use the formula.

• The discriminant is the radicand in the Quadratic Formula. Use it to determine the number of real roots of a particular quadratic equation.

• If the discriminant is positive, the equation has 2 real roots.

• If the discriminant is 0, it has one rational root.

• If the discriminant is negative, it has no real roots.