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Math Help - Quick Help Realizing This simplification

  1. #1
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    Quick Help Realizing This simplification

    I got this when Im suppose to be solving for x

    b(\frac{-2a^2}{x^3}-\frac{a}{x^2})=0

    but i dont see how it can me turned into this -its from an example the book

    -2a^2+ax=0
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  2. #2
    Rhymes with Orange Chris L T521's Avatar
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    Quote Originally Posted by sk8erboyla2004 View Post
    I got this when Im suppose to be solving for x

    b(\frac{-2a^2}{x^3}-\frac{a}{x^2})=0

    but i dont see how it can me turned into this -its from an example the book

    -2a^2+ax=0
    b\left(\frac{-2a^2}{x^3}-\frac{a}{x^2}\right)=0\implies b\left(\frac{-2a^2}{x^3}-\frac{ax}{x^3}\right)=0 \implies b\left(\frac{-2a^2-ax}{x^3}\right)=0\implies -2a^2-ax=0

    I'm not sure where its getting -2a^2{\color{red}+}ax=0, unless there is a typo somewhere in what you posted.
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  3. #3
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    nah, there is a plus in the manual unless they distributed the minus in front the -2a^2
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