There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ \frac{({(2x + 1)}^{9})}{({(3t - 1)}^{4})}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = \frac{(2x + 1)^{9}}{(3t - 1)^{4}}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( \frac{(2x + 1)^{9}}{(3t - 1)^{4}}\right)}{dx}\\=&\frac{(9(2x + 1)^{8}(2 + 0))}{(3t - 1)^{4}} + (2x + 1)^{9}(\frac{-4(0 + 0)}{(3t - 1)^{5}})\\=&\frac{18(2x + 1)^{8}}{(3t - 1)^{4}}\\ \end{split}\end{equation} \]

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