Quadratic Equations – Notes

Quadratic Equation

The roots of a quadratic equation of the form ax² + bx + c = 0 can be calculated using the formula x =

The sum of roots of a quadratic equation is: a + b =

The product of roots of a quadratic equation is: ab =

In a quadratic equation, b² – 4ac is called the discriminant, which is denoted by D or ∆

The nature of roots in a quadratic equation can be summed up as follows:

• If D > 0, then the roots are real and distinct.