CBSE · Class 6-12

Back to Quadratic Equations

Class 10 · Mathematics (Basic) · Unit 4: Quadratic Equations

Standard Form and Roots

Lesson 1 of 6

A quadratic equation is of the form

ax^2 + bx + c = 0

with

a \ne 0

. A number

\alpha

is a root (or zero) if

a\alpha^2 + b\alpha + c = 0

. Every quadratic has at most two roots. Real coefficients need not yield real roots — the discriminant decides.

Solving by Factorisation

All lessons in this unit