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Math Help - Factoring Homework

  1. #1
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    Factoring Homework

    Hi everyone, I'm having difficulty on a problem. Please just don't answer it, break it down in steps for me. The finals are 4 days from now. Get back at me ASAP. Thanks.

    3x@Sup{3}-24 or 3x^3-24 ( Three "X" to the 3rd, minus 24)
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  2. #2
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    Re: Factoring Homework

    \displaystyle 3x^3-24

    The common factor here is 3 so

    \displaystyle 3(x^3-8) =3(x^3-2^3)

    Now apply \displaystyle a^3-b^3 = (a-b)(a^2+ab+b^2) to the expression inside the brackets.
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  3. #3
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    Re: Factoring Homework

    Hey, how do you do that? The fonts and such. Anyway, it's (x-2)(x^2+2x+8) ?
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  4. #4
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    Re: Factoring Homework

    Quote Originally Posted by HellBunny View Post
    Hey, how do you do that? The fonts and such. Anyway, it's (x-2)(x^2+2x+8) ?
    Times 3, of course!
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  5. #5
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    Re: Factoring Homework

    Quote Originally Posted by HellBunny View Post
    Hey, how do you do that? The fonts and such. Anyway, it's (x-2)(x^2+2x+8) ?
    Use the LaTeX feature of this forum.
    [tex] (x-2)(x^2+2x+8)[/tex] gives  (x-2)(x^2+2x+8).
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