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Math Help - Expression of an Equation

  1. April 9th 2012, 05:35 PM #1
    GrigOrig99
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    Expression of an Equation

    Just a quick question. Is it correct to say that: \frac{45 - (2/3)(r^2)}{r} = \frac{45 - 3r^2}{2r}
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  2. April 9th 2012, 05:44 PM #2
    skeeter
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    Re: Expression of an Equation

    Quote Originally Posted by GrigOrig99 View Post
    Just a quick question. Is it correct to say that: \frac{45 - (2/3)(r^2)}{r} = \frac{45 - 3r^2}{2r}
    no, more like ...

    \frac{45 - (2/3)(r^2)}{r} \cdot \frac{3}{3} = \frac{135 - 2r^2}{3r}
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  3. April 9th 2012, 06:04 PM #3
    GrigOrig99
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    Re: Expression of an Equation

    Ok, ty.
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