Check sibling questions

For polynomial  p(x) ,

If  p(a) = 0

Then x = a is the zero of polynomial

 

Let us take an example

 

Let  p(x) = 5x 3 − 2x 2 + 3x  − 6

For x = 1

    p(1) = 5(1) 3 − 2(1) 2 + 3(1)  − 6

            = 5 − 2 + 3 − 6

    = 5 + 3 − 2 − 6

    = 0

 

So p(1) = 0 for x = 1

∴ x = 1 is a zero of p(x)

 

Next, we will learn how to find zeroes of a polynomial

  1. Chapter 2 Class 9 Polynomials
  2. Concept wise

About the Author

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo