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

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