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Math Help - How can i solve L for this equation algebraically

  1. #1
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    How can i solve L for this equation algebraically

    Hi I want to break out L from this equation and I have some problems in doing so

    M = -p*l - (q*l^2)/2

    I get

    L = (M + p) *2 / -q

    Is that correct? if not could someone correct me and help me write it properly

    Thank you
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  2. #2
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    Re: How can i solve L for this equation algebraically

    First multiply throughout by 2, we get
    2M = -2pl -ql^2
    That is
    ql^2 + 2pl + 2M = 0, it is a quadratic now you can proceed to solve it for l
    Thanks from agentmulder
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  3. #3
    Newbie JeanGunter's Avatar
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    Re: How can i solve L for this equation algebraically

    Thanks for this answer, actually we have same problem even though this post last April now I need it.
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