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Math Help - Simplifying

  1. #1
    Junior Member
    Joined
    Feb 2008
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    49

    Simplifying

    I need to simplify this without using a calculator.

    (3b^4c^-1)(2b^-7c^-8)
    _____________________
    42b^-5c^4



    Here's my try at it:

    3x2 (b^4)(b^-7) (c^-1)(c^-8)
    ____________________________
    42 (b^-5) (c^4)



    6 b^-3 c^-9
    ______________
    42 b^-5 c^4


    1 b^2
    ______
    7 c^13



    ^ This symbol indicates an exponent.
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  2. #2
    Jen
    Jen is offline
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    Corvallis, Oregon
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    Looks good!!

    Nice Job!
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