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5 August, 04:53

What are the roots of the equation x^2-5x-2=0?

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Answers (2)
  1. 5 August, 05:49
    0
    Answer: it is not possible
  2. 5 August, 07:32
    0
    Problem:

    The quadratic formula states:

    For

    a

    x

    2

    +

    b

    x

    +

    c

    =

    0

    , the values of

    x

    which are the solutions to the equation are given by:

    x

    =

    -

    b

    ±



    b

    2

    -

    (

    4

    a

    c

    )

    2



    a

    Substituting:

    1

    for

    a

    -

    5

    for

    b

    -

    2

    for

    c

    gives:

    x

    =

    -

    (

    -

    5

    )

    ±



    (

    -

    5

    )

    2

    -

    (

    4



    1



    -

    2

    )

    2



    1

    x

    =

    5

    ±



    25

    -

    (

    -

    8

    )

    2

    x

    =

    5

    ±



    25

    +

    8

    2

    x

    =

    5

    ±



    33

    2
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