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1. a2 - c2 + 2ab + b2 এর উৎপাদক কোনটি?

  • A. (a - b + c) (a - b + c)
  • B. (a - b + c) (a - b + c)
  • C. (a - b + c) (a - b + c)
  • D. (a - b + c) (a - b + c)

Answer: Option D

Explanation:

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