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Obtain all the zeroes of the polynomial   `x^(4)+4x^(3)-2x^(2)-20x -15`  , if two of its zeroes are `sqrt(5) or - sqrt(5)`.

Answer

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Knowledge Check

  • The zeroes of the polynomial   x^(3)-2x^(2)-x+2   are

    A
    `0,2,1`
    B
    `1,2,-1`
    C
    `1,-2,-1`
    D
    `1,-2,1`

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