Recent content by eightlgddj

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    Substitution Methods for 1st Order Diff. Eqns - Help for Beginners

    Thanks! Thats the substitution I came up with, I must have made a mistake after that point.
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    Substitution Methods for 1st Order Diff. Eqns - Help for Beginners

    What happened to 4x^2?
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    Substitution Methods for 1st Order Diff. Eqns - Help for Beginners

    I'm sorry, what's Lagrange's method? Its not in my book. I don't think its supposed to be that complicated of a solution, this is chapter 1 ODE stuff. There is no way to solve this problem by substitution?
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    Substitution Methods for 1st Order Diff. Eqns - Help for Beginners

    I guess that's what I don't understand. How is it separable? I've been working on this for an hour, and I can't separate the variables. Could you show me how to work it out? I really want to understand this, because I have to teach the concept of substitution methods to the rest of my class...
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    Substitution Methods for 1st Order Diff. Eqns - Help for Beginners

    I mean one like this:
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    Substitution Methods for 1st Order Diff. Eqns - Help for Beginners

    Sorry if my post was confusing... I meant first order differential equations that are neither linear nor separable.
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    Substitution Methods for 1st Order Diff. Eqns - Help for Beginners

    Hi, I'm new to the forum, and new to differential equations. I was wondering if someone could post a no-nonsence explanation of substitution methods for first order differential equations. Thanks!
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