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Question


  1. (x + 1)(x - 1)(x + 2)

  2. (x – 1)(x + 1)(2x + 1)

  3. (x – 2)(x + 1)(2x + 1)

  4. (x – 1)(x + 1)(x + 1)


Solution

The correct option is B

(x – 1)(x + 1)(2x + 1)


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