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Math Help - Simplifying an expression

  1. #1
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    Simplifying an expression

    Ok, I need to know how to solve, or if someone could just help me get started on this problem...


    (b^2 + 4 b + 16)/(b^3 - 64)


    Thanks!
    Last edited by mr fantastic; April 2nd 2010 at 10:25 PM. Reason: Changed post title
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  2. #2
    Senior Member MacstersUndead's Avatar
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    Note that:
    a^3 - b^3 = (a-b)(a^2+ab+b^2)

    and that 64 = 4^3

    can you finish?
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  3. #3
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    Quote Originally Posted by WinnieThePooh View Post
    Ok, I need to know how to solve, or if someone could just help me get started on this problem...


    (b^2 + 4 b + 16)/(b^3 - 64)


    Thanks!
    You are not solving anything here. There is no equation to solve. You are simplifying an expression.
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