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Black Book Advanced Problems in MathematicsMathematicsQuadratic Equation

If the difference between the roots of x^2 + ax + b = 0 is same as that of x^2 + bx + a = 0, a b , then:

Options

  1. Aa+b+4=0
  2. Ba+b-4=0
  3. Ca-b-4=0
  4. Da-b+4=0 .

Correct answer

A. a+b+4=0

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