Most of the important things in the world have been accomplished by people who have kept on trying when there seemed to be no help at all. – **Dale Carnegie**

# Lecture - 1 Chapter 2 Polynomials

Meaning of Polynomials (Linear, quadratic and cubic polynomials)

Graphical representation of different types of quadratic polynomials and how to read number of zeroes from graph of quadratic equation

00:07:04 NCERT Exercise 2.1 Question 1

00:08:45 Explanation for Relationship between coefficients and zeroes (roots) of a quadratic polynomial

00:10:45 Derivation for relationship between coefficients and roots of quadratic polynomial

NCERT Exercise 2.2 Question 1 Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients.

(i) x^2-2x-8

(ii) 4s^2-4s+1

(iii) 6x^2-3-7x

(iv) 4u^2+8u

(v) t^2-15

(vi) 3x^2-x-4