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math-calculus

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using quadratic formula solve
|x^2-2x-6| = 4. and answer have to be 1+-sqrt3, 1+-sqrt11 i just not get how to get this.

  • math-calculus -

    | x ^ 2 - 2 x - 6 |= 4

    Eliminate the absolute value :

    x ^ 2 - 2 x - 6 = 4

    OR

    x ^ 2 - 2 x - 6 = - 4


    Your must solve both equations.


    In google type:

    quadratic equation online

    When you see list of results click on:

    Free Online Quadratic Equation Solver:Solve by Quadratic Formula

    When page be open in rectangle type:


    x ^ 2 - 2 x - 6 = 4


    and click option: solve it!

    You will see solutions of equation :

    x ^ 2 - 2 x - 6 = 4

    step-bay-step



    Then in rectangle type:

    x ^ 2 - 2 x - 6 = - 4

    and click option: solve it!

    You will see solutions of equation :

    x ^ 2 - 2 x - 6 = - 4

    step-bay-step




    Equation :

    | x ^ 2 - 2 x - 6 | = 4

    has 4 solutions :

    1 + sqrt ( 11 )

    1 - sqrt ( 11 )

    1 + sqrt ( 3 )

    and

    1 - sqrt ( 3 )

  • math-calculus -

    thank you very much the site be very very helpful i try to find site like that yesterday and i not find thanks very much.

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