Question 1. Find the zeroes of the following quadratic polynomials and verify the relation Chapter 2: Polynomials Maths Class 10 solutions are developed for assisting understudies with working on their score and increase knowledge of the subjects. Question 1. Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients. (i) x² – 2x – 8 is solved by our expert teachers. You can get ncert solutions and notes for class 10 chapter 2 absolutely free. NCERT Solutions for class 10 Maths Chapter 2: Polynomials is very essencial for getting good marks in CBSE Board examinations
1. Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients.
(i) x² – 2x – 8
(i)
Factorize the equation
2 and -4 are such number which
So we can write middle term -2 x = 2 x – 4 x
We get
x²+2x-4x-8=0
x (x + 2)-4(x + 2) = 0
(x+2) (x-4) = 0
First zero
x + 2 = 0
x = -2
Second zero
x-4 = 0
x = 4
sum of zero -2 + 4 = 2
product of zero 2 x -4 = -8
For a equation ax² + bx + c = 0 , if zeroare α and β ,
Plug the values of a , b and c we get
Sum of zeros -b/a = -(-2/1) = 2
Product of zeros c/a =-8/1 = -8
Copyright @ ncerthelp.com A free educational website for CBSE, ICSE and UP board.