There are 1 questions in this calculation: for each question, the 4 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ 4th\ derivative\ of\ function\ {(\frac{(8ac - 3bb)}{(48aa)})}^{2} + \frac{(256aaaf - 64aabd + 16abbc - 3bbbb)}{(768aaaa)}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = \frac{\frac{1}{36}c^{2}}{a^{2}} + \frac{\frac{1}{3}f}{a} - \frac{\frac{1}{12}bd}{a^{2}}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( \frac{\frac{1}{36}c^{2}}{a^{2}} + \frac{\frac{1}{3}f}{a} - \frac{\frac{1}{12}bd}{a^{2}}\right)}{dx}\\=&0 + 0 + 0\\=&0\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( 0\right)}{dx}\\=&0\\\\ &\color{blue}{The\ third\ derivative\ of\ function:} \\&\frac{d\left( 0\right)}{dx}\\=&0\\\\ &\color{blue}{The\ 4th\ derivative\ of\ function:} \\&\frac{d\left( 0\right)}{dx}\\=&0\\ \end{split}\end{equation} \]

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