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    If the HCF of x 4 + 3x 3 + 5x 2 + 26 x+56 and x 4 + 2 x 3 - 4x 2- x +28 is x 2 + 5x+7 . Then their LCM is 
    Question

    If the HCF of x 4 + 3x 3 + 5x 2 + 26 x+56 and x 4 + 2 x 3 - 4x 2- x +28 is x 2 + 5x+7 . Then their LCM is 

    A.

    (x 2 + 2x + 8) ( x 4 + 2x 3- 4 x 2 -x +28) 

    B.

    (x2+ 2x -8) ( x4+ 2x3- 4 x2-x +28)​

    C.

    (x2- 2x +8) ( x4+ 2x3- 4 x2-x +28)​​

    D.

    (x2- 2x -8) ( x4+ 2x3- 4 x2-x +28)​​

    E.

    Answer notknown

    Correct option is C

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