There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 2{x}^{4} - 28{x}^{3} + 147{x}^{2} - 343x\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 2x^{4} - 28x^{3} + 147x^{2} - 343x\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 2x^{4} - 28x^{3} + 147x^{2} - 343x\right)}{dx}\\=&2*4x^{3} - 28*3x^{2} + 147*2x - 343\\=&8x^{3} - 84x^{2} + 294x - 343\\ \end{split}\end{equation} \]

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