There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ {(40x - 39)}^{3}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 64000x^{3} - 187200x^{2} + 182520x - 59319\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 64000x^{3} - 187200x^{2} + 182520x - 59319\right)}{dx}\\=&64000*3x^{2} - 187200*2x + 182520 + 0\\=&192000x^{2} - 374400x + 182520\\ \end{split}\end{equation} \]

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