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Black Book Advanced Problems in MathematicsMathematicsQuadratic Equation

If 3x^4 - 6x^3 + kx^2 - 8x - 12 is divisible by x - 3 , then it is also divisible by :

Options

  1. A3x^2 - 4
  2. B3x^2 + 4
  3. C3x^2 + x
  4. D3x^2 - x .

Correct answer

B. 3x^2 + 4

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