A Quadratic Equation Has A Discriminant Of 12. Which Could Be The Equation?

Matching this with the quadratic equation formula ax 2 + bx + c = 0, we get the following values: Therefore, the discriminant is 124 which is a positive number and hence the given quadratic equation has two real solutions. The quadratic equation has two equal real roots if d = 0. The equation thus becomes x = −b/2a, which is a single number.