There are 1 questions in this calculation: for each question, the 1 derivative of q is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ {q}^{3} - 10{q}^{2} + 40q + 50\ with\ respect\ to\ q：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = q^{3} - 10q^{2} + 40q + 50\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( q^{3} - 10q^{2} + 40q + 50\right)}{dq}\\=&3q^{2} - 10*2q + 40 + 0\\=&3q^{2} - 20q + 40\\ \end{split}\end{equation} \]

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