English

Discriminant

How to find the nature of the roots of a quadratic equation by using its discriminant: formula, 4 examples, and their solutions.

Formula

Nature of the Roots

Examplex2 + 7x + 10 = 0

Examplex2 - 4x - 1 = 0

Examplex2 - 6x + 9 = 0

Examplex2 + 2x + 5 = 0