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Math Help - Factoring By Grouping

  1. #1
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    Sep 2007
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    Factoring By Grouping

    I just have one simple question about the basics of factoring.

    Lets say we have 4x^3 - 24x^2 - 3x + 18

    = (4x^3 - 24x^2) + (-3x + 18)
    = 4x^2(x - 6) -3(x - 6) I get this part where you're factoring out common factors

    This is where I get confused.... the book says the answer is
    (4x^2 - 3) (x - 6)

    It doesn't say anything on how it got the answer so I'm kinda stumped on what to do.

    Any help would be appreciated.

    Thanks!
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  2. #2
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    Sep 2007
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    never mind figured it out... the first terms are the GCF's =)
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