Last updated at June 29, 2018 by Teachoo

Transcript

Ex 4.2, 2(i) Solve the problems given in Example 1. We found the equation as x2 – 45x + 324 = 0 We factorize by splitting the middle term method x2 – 9x – 36x + 324 = 0 x (x – 9) – 36 (x – 9) = 0 (x – 36) (x – 9) = 0 Thus, x = 36 & x = 9 are the roots of equation Ex 4.2, 2(ii) Solve the problems given in Example 1. We found the equation as x2 – 55x + 750 = 0 We factorize this by splitting the middle term method x2 – 30x – 25 x + 750 = 0 x (x – 30) – 25 (x – 30) = 0 (x – 25) (x – 30) = 0 Hence 25 & 30 are the roots of the equation

Chapter 4 Class 10 Quadratic Equations (Term 2)

Serial order wise

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.