There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ (35 - x)(1 + \frac{(165 + 8x)}{100})\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = \frac{3}{20}x - \frac{2}{25}x^{2} + \frac{371}{4}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( \frac{3}{20}x - \frac{2}{25}x^{2} + \frac{371}{4}\right)}{dx}\\=&\frac{3}{20} - \frac{2}{25}*2x + 0\\=& - \frac{4x}{25} + \frac{3}{20}\\ \end{split}\end{equation} \]

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