# Example 12 - Chapter 2 Class 9 Polynomials

Last updated at May 29, 2018 by Teachoo

Last updated at May 29, 2018 by Teachoo

Transcript

Example 12 Find the value of 𝑘, if x – 1 is a factor of 4𝑥3+ 3𝑥2−4𝑥+𝑘 Let p 𝑥= 4𝑥3+ 3𝑥2−4𝑥+𝑘 It is given x – 1 is a factor of 4𝑥3+ 3𝑥2−4𝑥+𝑘 p(1) = 0 4 (1)3+ 3 (1)2 −4 1+𝑘=0 4 + 3 − 4 + k=0 4 − 4 + 3 + 𝑘=0 3 + 𝑘=0 𝑘=−3 ∴ 𝒌=−𝟑

Examples

Example 1

Example 2

Example 3 Important

Example 4

Example 5

Example 6

Example 7 Important

Example 8

Example 9

Example 10

Example 11

Example 12 Important You are here

Example 13

Example 14

Example 15 Important

Example 16

Example 17

Example 18 Important

Example 19

Example 20

Example 21 Important

Example 22

Example 23 Important

Example 24 Important

Example 25

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.