There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ -0.004{x}^{3} - 5.4{x}^{2} + 1200x - 16000\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = -0.004x^{3} - 5.4x^{2} + 1200x - 16000\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( -0.004x^{3} - 5.4x^{2} + 1200x - 16000\right)}{dx}\\=&-0.004*3x^{2} - 5.4*2x + 1200 + 0\\=&-0.012x^{2} - 10.8x + 1200\\ \end{split}\end{equation} \]

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