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Black Book Advanced Problems in MathematicsMathematicsQuadratic Equation

If quadratic equation ax^2 + bx + c = 0 does not have real roots, then which of the following may be false :

Options

  1. Aa(a-b+c)>0
  2. Bc(a-b+c)>0
  3. Cb(a-b+c)>0
  4. D(a+b+c)(a-b+c)>0 .

Correct answer

C. b(a-b+c)>0

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