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    Gernald's Avatar
    Gernald Posts: 901, Reputation: 93
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    #1

    Oct 28, 2007, 12:38 PM
    Can't solve polynomail
    I'm trying to solve the equation 2x^3+60x is less then or equal to 5x^2+37x
    I got it down to 2x^3-5x^2+23x=0 but I don't know what to do next. I think I'm supposed to factor but I can't figure that out either.
    I'm so lost. :eek:
    s_cianci's Avatar
    s_cianci Posts: 5,472, Reputation: 760
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    #2

    Oct 28, 2007, 02:12 PM
    Factor, then do a sign analysis. The zeros of your factors will determine the intervals on which to do your sign analysis.
    Gernald's Avatar
    Gernald Posts: 901, Reputation: 93
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    #3

    Oct 28, 2007, 03:46 PM
    Thanks but, Do what??
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #4

    Oct 28, 2007, 05:25 PM
    You can rewrite it as:
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