Q. 1 A3.9( 42 Votes )

# Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients.x2 – 2x – 8

p(x) = 0

x2 – 2x – 8 = 0

x2 + 2x – 4x – 8 = 0

x(x + 2) – 4(x + 2) = 0

(x + 2)(x – 4) = 0

x = -2 and x = 4

Hence, -2 and 4 are zeroes of the polynomial x2 – 2x – 8.

Now,

Sum of zeroes = -2 + 4

Sum of zeroes = 2

Product of zeroes = -2 × 4

Product of zeroes = -8

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Champ Quiz |Revealing the relation Between Zero and Coefficients38 mins
Relation Between zeroes and Coefficients46 mins
Interactive Quiz:Polynomials43 mins
Division Algorithm-130 mins
Relationship between Zeroes and Coefficients-152 mins
Quiz - Division Algorithm38 mins
NCERT I Relation Between Coefficients and Zeroes of Quadratic Polynomial42 mins
Relation b/w The Zeroes and Coefficients of Cubic Polynomials54 mins
Solving Imp. Qs. of Olympiad on Polynomials47 mins
Revision of Relation Between the Zeroes and Coefficients of Quadratic Polynomial46 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses