There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ {x}^{2} - 3x + \frac{4{x}^{3}}{4} + 7\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = x^{2} - 3x + x^{3} + 7\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( x^{2} - 3x + x^{3} + 7\right)}{dx}\\=&2x - 3 + 3x^{2} + 0\\=&2x + 3x^{2} - 3\\ \end{split}\end{equation} \]

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