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NDA2012MathematicsLimitsActual

What is _ x -2 ( x+2 x^3+8 ) equal to?

Options

  1. A1/4
  2. B-1/4
  3. C1/12
  4. D-1/12

Correct answer

C. 1/12

Step-by-step solution

aligned & _ x -2 x+2 (x)^3+(2)^3 & _ x -2 x+2 (x+2) (x^2-2 x+4 ) & = 1 (-2)^2-2(-2)+4 ( C ) = 1 4+4+4 = 1 12 . aligned

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