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5 September, 19:09

List the possible rational roots and actual rational roots for the equation x^3 - 5x^2 - 4x + 20 = 0

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  1. 5 September, 21:53
    0
    The possible rational roots are

    ±

    1

    ,

    ±

    2

    ,

    ±

    4

    ,

    ±

    5

    ,

    ±

    10

    ,

    ±

    20

    . The rational roots are

    x

    =

    -

    2

    ,

    x

    =

    2

    ,

    x

    =

    5

    .
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