Class 9 / IIT Foundation Plus Maths / Quadratic Expressions-I / Discriminant And Nature of roots of quadratic equation

Quadratic Expressions - I

Quadratic Expressions - I 10. Discriminant of a quadratic equation: If ax2+bx+c=0 is a quadratic equation then we know that \( x = \frac{{ - b \pm \sqrt {b^2 - 4ac} }} {{2a}} \) Her