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Black Book Advanced Problems in MathematicsMathematicsQuadratic Equation

Let , , , are roots of x^4 - 12x^3 + x^2 - 54x + 14 = 0 . If + = + , then

Options

  1. A= 45
  2. B= -45
  3. CIf ^2 + ^2 < ^2 + ^2 then = 7 2
  4. DIf ^2 + ^2 < ^2 + ^2 then = 2 7 .

Correct answer

A. = 45

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