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RD Chapter 8- Quadratic Equations Ex-8.4 Interview Questions Answers

Question 1 : Find the roots of the following quadratic equations (if they exist) by the method of completing the square.
x² – 4 √2x + 6 = 0

Answer 1 :


Question 2 : 2x² – 7x + 3 = 0

Answer 2 :


Question 3 : 3x² + 11x + 10 = 0

Answer 3 :


Question 4 : 2x² + x – 4 = 0

Answer 4 :


Question 5 : 2x² + x + 4 = 0

Answer 5 :


Question 6 : 4x² + 4√3x + 3 = 0

Answer 6 :


Question 7 : √2 x² – 3x – 2√2 = 0

Answer 7 :


Question 8 : √3 x² + 10x + 7√3 = 0

Answer 8 :


Question 9 : x² – (√2 + 1)x + √2 = 0

Answer 9 :


Question 10 : x² – 4ax + 4a² – b² = 0

Answer 10 :



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RD Chapter 8- Quadratic Equations Ex-8.4 Contributors

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