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#29887 Bangla Language & Literature দ্বিঘাত সমীকরণ Level 0

ax2 + bx + c = 0 সমীকরণের মূল দুইটি মূলদ হবে যদি--

  1. A b2 - 4ac একটি পূর্ণবর্গ সংখ্যা হয়
  2. B b2 < 4ac
  3. C b2 > 4ac
  4. D কোনটিই নয়
Answer: A - b2 - 4ac একটি পূর্ণবর্গ সংখ্যা হয়

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