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1. সাধারণ উৎপাদক নির্নয় করুনঃ a² - b² - c² - 2bc, b² - c² - a² -2ac

  • A. a + b + c
  • B. a + b + c
  • C. a + b + c
  • D. a + b + c

Answer: Option A

Explanation:

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