Preference

প্রশ্নঃ a² - 3a, a² - 9, a² - 4a + 3 -এর গ.সা.গু. হবে--

  1. ক.
    a(a - 3)(a - 1)
  2. খ.
    (a - 3)(a - 1)(a + 3)
  3. গ.
    (a - 3)
  4. ঘ.
    (a - 3)(a + 3)
উত্তরঃ
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