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Black Book Advanced Problems in MathematicsMathematicsQuadratic Equation

The quadratic expression ax^2 + bx + c > 0 x R , then:

Options

  1. A13a - 5b + 2c > 0
  2. B13a - b + 2c > 0
  3. Cc > 0, D < 0
  4. Da + c > b, D < 0 (where D is discriminant).

Correct answer

A. 13a - 5b + 2c > 0

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