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#31225 Bangla Language & Literature সহজ সূত্রাবলী Level 0

a3 + b3 = কত?

  1. A (a + b)(a2 + ab + b2)
  2. B (a + b)3 + 3ab(a + b)
  3. C (a + b)3 - 3ab(a + b)
  4. D a3 + 3a2b + 3ab2 + b3
Answer: C - (a + b)3 - 3ab(a + b)

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