There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ {(1 - x)}^{4}(4x + 1)\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 4x^{5} - 15x^{4} + 20x^{3} - 10x^{2} + 1\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 4x^{5} - 15x^{4} + 20x^{3} - 10x^{2} + 1\right)}{dx}\\=&4*5x^{4} - 15*4x^{3} + 20*3x^{2} - 10*2x + 0\\=&20x^{4} - 60x^{3} + 60x^{2} - 20x\\ \end{split}\end{equation} \]

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