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Math Help - Equation solution

  1. #1
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    Equation solution

    Hi,

    Please, how can I isolate "d" variable in this equation? Which the value of "d"?
    Equation solution-w.jpg

    If I didn't wrong anything, the equation will be like this, but, how to find the value of "d"?
    Equation solution-d.jpg

    Thanks in advance.
    Euler
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by kgb67 View Post
    Hi,

    Please, how can I isolate "d" variable in this equation? Which the value of "d"?
    Click image for larger version. 

Name:	W.JPG 
Views:	51 
Size:	2.6 KB 
ID:	16626

    If I didn't wrong anything, the equation will be like this, but, how to find the value of "d"?
    Click image for larger version. 

Name:	d.JPG 
Views:	16 
Size:	10.6 KB 
ID:	16628

    Thanks in advance.
    Euler
    You have a quartic in d , which often is impractical to solve in closed form when you have symbolic coefficients, but look here.


    CB
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  3. #3
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    CaptainBlack,

    Thank you for your answer and your tip. After several attempts I verified that would not be practical to solve this system.

    Thank you,

    Euler
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