About Quadratic Equation

 Courtesy: Programiz.com


The standard form of a quadratic equation is:

ax2 + bx + c = 0, where
a, b and c are real numbers and
a != 0

The term b2; - 4ac is known as the discriminant of a quadratic equation. It tells the nature of the roots.

  • If the discriminant is greater than 0, the roots are real and different.
  • If the discriminant is equal to 0, the roots are real and equal.
  • If the discriminant is less than 0, the roots are complex and different.
Formula to compute the roots of a quadratic equation
Figure: Roots of a Quadratic Equation

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