Last updated at Dec. 16, 2024 by Teachoo
Example 13 Find the roots of the following quadratic equations, if they exist, using the quadratic formula: (iii) 2x2 2 2 + 1 = 0 2x2 - 2 2 x + 1 = 0 Comparing equation with ax2 + bx + c = 0 Here, a = 2, b = 2 2 , c = 1 We know that D = b2 4ac = (" 2" 2)^2 4 (2) 1 = (4 2) (8) = 8 8 = 0 So, the roots of the equation is given by x = ( )/2 Putting values x = ( ( 2 2) 0)/(2 2) x = (2 2 0)/4 x = (2 2)/4 x = 2/2 Hence, the roots of the equation are 2/2 and 2/2.
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Example 9
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Question 7 (iii) You are here
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About the Author
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