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) $3x^2-x-4$