Question 2 (iv) - Ex 4.3 - Chapter 4 Class 10 Quadratic Equations

Last updated at April 16, 2024 by

 

Ex 4.3, 2 - Chapter 4 Class 10 Quadratic Equations - Part 7

Ex 4.3, 2 - Chapter 4 Class 10 Quadratic Equations - Part 8

Transcript

Ex 4.3 ,2 Find the roots of the quadratic equation using quadratic formula (iv) 2x2 + x + 4 = 0 2x2 + x + 4 = 0 Comparing equation with ax2 + bx + c = 0 So, a = 2, b = 1, c = 4 We know that D = b2 4ac D = 12 4 2 4 D = 1 32 D = 31 Hence roots to equation are x = ( )/2 Putting values x = ( 1 ( 31))/2 Since there is a negative number in the root, therefore D will not have any real value. So, there are no real roots for the given equation.

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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, Social Science, Physics, Chemistry, Computer Science at Teachoo.