There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ xx(\frac{(225 - xx)x}{4})\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = \frac{-1}{4}x^{5} + \frac{225}{4}x^{3}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( \frac{-1}{4}x^{5} + \frac{225}{4}x^{3}\right)}{dx}\\=&\frac{-1}{4}*5x^{4} + \frac{225}{4}*3x^{2}\\=&\frac{-5x^{4}}{4} + \frac{675x^{2}}{4}\\ \end{split}\end{equation} \]

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