Subject

    Bank Exam

    Topic

    NRBC Bank Ltd - TAO 2021 [01.01.2021, BS, DU]

    x3- 25 = 12, x + 5 = 4, x - 5 = ?

    ক)
    2
    খ)
    3
    গ)
    4
    ঘ)
    6

    Explanation

    দেয়া আছে, x 2 - 25 = 12 => x 2 - 5 2 = 12 => ( x + 5 ) ( x - 5 ) = 12 => 4( x - 5 ) = 12 ∴ ( x - 5 ) = 12/4 = 3

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