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Math Help - Factoring Questions - Help!

  1. #16
    Eater of Worlds
    galactus's Avatar
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    See if you can hammer it into this shape:

    9(x+2y+z)^{2}-16(x-2y+z)^{2}=(14y-x-z)(7x-2y+7z)
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  2. #17
    Math Engineering Student
    Krizalid's Avatar
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    Quote Originally Posted by CaptainBlack View Post
    No real factors
    You sure?

     <br />
3v^2-11v-10<br />

    It has real roots
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  3. #18
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    Quote Originally Posted by galactus View Post
    See if you can hammer it into this shape:

    9(x+2y+z)^{2}-16(x-2y+z)^{2}=(14y-x-z)(7x-2y+7z)
    I ended up getting (7x - 2y + 7z)(7x - 2y + 7z)

    I went wrong somewhere. :S

    EDIT: Nevermind, had my signs confused. I did end up getting (14y - x - z)(7x - 2y + 7z).
    Last edited by Jeavus; September 8th 2007 at 09:08 AM.
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  4. #19
    Grand Panjandrum
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    Quote Originally Posted by Krizalid View Post
    You sure?

     <br />
3v^2-11v-10<br />

    It has real roots
    Oppss.. no rational factors

    RonL
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