1. Chapter 4 Class 10 Quadratic Equations
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Question 7 (ii) - Examples - Chapter 4 Class 10 Quadratic Equations

Last updated at Dec. 16, 2024 by Teachoo

 

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Example 13 Find the roots of the following quadratic equations, if they exist, using the quadratic formula: (ii) x2 + 4x + 5 = 0 x2 + 4x + 5 = 0 Comparing equation with ax2 + bx + c = 0 Here, a = 1, b = 4, c = 5 We know that D = b2 4ac D = (4)2 4 (1) (5) D = (4)2 20 D = 16 20 D = 4 Hence roots to equation are x = ( )/2 x = ( 4 ( 4))/(2 (1)) 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.
  1. Chapter 4 Class 10 Quadratic Equations
  2. Serial order wise

    3. Examples

    Case Based Questions (MCQ) →
Case Based Questions (MCQ) →
Chapter 4 Class 10 Quadratic Equations
Serial order wise

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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 14 years. He provides courses for Maths, Science and Computer Science at Teachoo