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1. 9x2-9x-4

  • A. (3x+1)
  • B. (3x+1)
  • C. (3x+1)
  • D. (3x+1)

Answer: Option B

Explanation:

9x2-9x-49x2-12x+3x-4=3x3x-4+13x-4=3x-43x+1

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