Polynomials Class 10 Maths | RD Sharma Exercise 2.1 | CBSE 2026 | Rashmi Mam

Описание: Class 10 Maths Polynomials RD Sharma Exercise 2.1 complete step-by-step solutions for CBSE Board Exam 2027. In this video, you will learn how to find zeros of quadratic polynomials and verify the relationship between zeroes and coefficients.
Watch till the end for the most important board exam question (Find value of k).

00:00 Introduction to RD Sharma Exercise 2.1
00:39 Find the zeros of each of the following quadratic polynomials and verify the relationship between the zeros and their coefficients:
(i) f(x) = x2 - 2x - 8
(ii) g(s) = 4s2 - 4s + 1
(iii) h(t) = t2 - 15
(iv) f(x) = 6x2 - 3 -7x
01:10 Find the zeros of q(y) = 7y2 - 11/3 y - 2/3 quadratic polynomial and verify the relationship between the zeros and their coefficients.
05:44 Find the zeros of f(x) = 2x2 + 7/2 x + 3/4 quadratic polynomial and verify the relationship between the zeros and their coefficients.
09:41 For each of the following, find a quadratic polynomial whose sum and product respectively of the zeroes are as given. Also, find the zeroes of these polynomials by factorization.
(i) -8/3 , 4/3
13:28 For each of the following, find a quadratic polynomial whose sum and product respectively of the zeroes are as given. Also, find the zeroes of these polynomials by factorization.
(ii) 21/8 , 5/16
16:23 If alpha and beta are the zeros of the quadratic polynomial f(x) = x2 - 5x + 4, find the value of 1/alpha + 1/beta - 2 alpha beta
18:41 If alpha and beta are the zeros of the quadratic polynomial p(y) = 5y2 - 7y + 1, find the value of 1/alpha + 1/beta
19:48 If one zero of the quadratic polynomial f(x) = 4x2 - 8kx - 9 is negative of the other, find the value of k.
21:04 If the sum of the zeros of the quadratic polynomial f(t) = kt2 +2t + 3k is equal to their product, find the value of k.

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