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1. সাধারণ দ্বিঘাত সমীকরণ ax2 + bx + c = 0 এর মূল দুটি হল--

  • A. -b + c2 -4ab
  • B. -b + c2 -4ab
  • C. -b + c2 -4ab
  • D. -b + c2 -4ab

Answer: Option D

Explanation:

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