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RD Chapter 8 Quadratic Equations Ex 8.3 Solutions

Question - 51 : - (a + b)2 x² – 4abx – (a – b)2 = 0

Answer - 51 : -


Question - 52 : - a (x² + 1) – x (a² + 1) = 0

Answer - 52 : -


Question - 53 : - x² – x – a (a + 1) = 0

Answer - 53 : -


Question - 54 : - x² + (a + 1/a) x + 1 = 0

Answer - 54 : -


Question - 55 : - abx² + (b² – ac) x – bc = 0 (C.B.S.E. 2005)

Answer - 55 : -


Question - 56 : - a²b²x² + b²x – a²x – 1 = 0 (C.B.S.E. 2005)

Answer - 56 : -


Question - 57 : -

Answer - 57 : -


Question - 58 : -

Answer - 58 : -


Question - 59 : -

Answer - 59 : -


⇒ x = 0
x = 0, -7

Question - 60 : -

Answer - 60 : -


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