There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ (2680 + 161x)(150 + 7(13 - x))\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 20041x - 1127x^{2} + 645880\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 20041x - 1127x^{2} + 645880\right)}{dx}\\=&20041 - 1127*2x + 0\\=& - 2254x + 20041\\ \end{split}\end{equation} \]

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