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Ex 4.2, 2 - Solve the problems given in Example 1 - Ex 4.2

Ex 4.2, 2 - Chapter 4 Class 10 Quadratic Equations - Part 2


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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

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.