2x^2-3x+7=0 .find the root by using completing the square

Question

2x^2-3x+7=0 .find the root by using completing the square

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Autumn 4 weeks 2021-08-16T18:23:21+00:00 1 Answer 0 views 0

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    0
    2021-08-16T18:24:28+00:00

    We can use the quadratic equation to solve this 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:

    2

    for

    a

    3

    for

    b

    7

    for

    c

    gives:

    x

    =

    3

    ±

    3

    2

    (

    4

    2

    7

    )

    2

    2

    x

    =

    3

    ±

    9

    56

    4

    x

    =

    3

    ±

    47

    4

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