There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ ln(-50{x}^{2} + 57x - 20)\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = ln(-50x^{2} + 57x - 20)\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( ln(-50x^{2} + 57x - 20)\right)}{dx}\\=&\frac{(-50*2x + 57 + 0)}{(-50x^{2} + 57x - 20)}\\=&\frac{-100x}{(-50x^{2} + 57x - 20)} + \frac{57}{(-50x^{2} + 57x - 20)}\\ \end{split}\end{equation} \]

Your problem has not been solved here? Please take a look at the  hot problems ！