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Black Book Advanced Problems in MathematicsMathematicsQuadratic Equation

If x is real and 4y^2 + 4xy + x + 6 = 0 , then the complete set of values of x for which y is real, is:

Options

  1. Ax -2 or x 3
  2. Bx 2 or x 3
  3. Cx -3 or x 2
  4. D-3 x 2 .

Correct answer

A. x -2 or x 3

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