Subject

    Bank Exam

    Topic

    Sonali Bank- 2010 (Sr.Officer)

    (a-b)(a-b) = কত?

    ক)
    a2-b2
    খ)
    a2-2ab+b2
    গ)
    a2+2ab+b2
    ঘ)
    a2+b2

    Explanation

    (a-b)(a-b) = (a-b)2 = a2-2ab+b2

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