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    bosey's Avatar
    bosey Posts: 7, Reputation: 1
    New Member
    		  
    #1

    Aug 30, 2006, 11:45 AM
    Nonlinear Systems of Equation
    Nonlinear Systems of Equation:

    Problem:

    y = x^2
    3x = y +2

    Any assistance you can give me will greatly appreciated.

    Thank you!:)
    karma's Avatar
    karma Posts: 33, Reputation: 3
    Junior Member
    		  
    #2

    Aug 30, 2006, 11:57 AM
    Try the substitution method... you know what y is in terms of x... try that.
    CaptainForest's Avatar
    CaptainForest Posts: 3,645, Reputation: 393
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    #3

    Aug 30, 2006, 12:44 PM
    y = x^2
    3x = y +2 or y = 3x – 2

    x^2 = 3x – 2
    x^2 – 3x + 2 = 0
    (x – 2) (x – 1) = 0

    Therefore, x = 2 or 1
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