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Math Help - Factorisation

  1. #1
    Junior Member
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    Factorisation

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

    2. a^3 - 2b^3 + (a+b)^3

    Thank you.
    Last edited by muks; November 4th 2008 at 05:09 AM. Reason: Spelling error
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  2. #2
    Newbie
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    Answers,
    1. (x^3+3x-3)(x^2+3x-2)
    2. 2a^3+3ab^2+3a^2b-b^3
    = 2a^3+3ab(a+b)-b^3
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  3. #3
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    Please explain in details.
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