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  1. {(476 + 424)2 - 4 x 476 x 424} = ?

    2. A.

    2906
    B.

    3116
    C.

    2704
    D.

    2904
    E.

    None of these

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    Answer : Option C

    Explanation :

    Given Exp. = [(a + b)2 - 4ab], where a = 476 and b = 424
      = [(476 + 424)2 - 4 x 476 x 424]
      = [(900)2 - 807296]
      = 810000 - 807296
      = 2704.

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