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Math Help - common factoring questions

  1. #1
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    common factoring questions

    Hi, if anyone can help me with the following questions, it would be GREATLY appreciated!

    These 3 questions must be common factored:

    1. 3x^4 - 27x^2 + 15x^6

    2. 8x^-2 + 16x^5 - 14x^-3

    3. -3(x-1)^2 - 12(x-1)^-3

    THANK YOU
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  2. #2
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    Quote Originally Posted by checkmarks View Post
    Hi, if anyone can help me with the following questions, it would be GREATLY appreciated!

    These 3 questions must be common factored:

    1. 3x^4 - 27x^2 + 15x^6

    2. 8x^-2 + 16x^5 - 14x^-3

    3. -3(x-1)^2 - 12(x-1)-3

    THANK YOU
    1. 3x^4 - 27x^2 + 15x^6

    (3x^2)(x^2+5x^4-9)


    2. 8x^{-2} + 16x^5 -  14x-3

    \frac{2(8x^{8}+4x-7)}{x^{3}}


    3. -3(x-1)^{2} - 12(x-1)^{-3}

    -\frac{3(x^{5}-5x^{4}+10x^{3}-10x^{2}+5x+3)}{(x-1)^{3}}

    this is my answer.
    Last edited by princess_21; February 1st 2009 at 07:13 AM. Reason: error
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