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Math Help - How exactly do I do this?

  1. #1
    Junior Member
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    How exactly do I do this?

    I'm supposed to solve for x by completing the square (Grade 11 math).

    I'm just confused on this whole completing squares method. I've been at this one for a couple of hours. Help!

    {1\over{x^3+2}}-{1\over{x^3+3}}={1\over12}
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  2. #2
    MHF Contributor
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    I would do this...

    Substitute: m = x^{3}

    Solve for m.

    Then worry about solving for x.
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  3. #3
    MHF Contributor
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    Wow, you came back!

    On second thought, it might be even more fun to substitute m = x^{3} + 2 and see what happens.
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