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Black Book Advanced Problems in MathematicsMathematicsQuadratic Equation

Let f(x) = x^2 + 1 x^2 - 6x - 6 x + 2 , then minimum value of f(x) is :

Options

  1. A-2
  2. B-8
  3. C-9
  4. D-12.

Correct answer

C. -9

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