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

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