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RD Chapter 8 Quadratic Equations Ex 8.4 Solutions

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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