There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ {x}^{2} + 3x - {x}^{3} + {x}^{(12e)}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = x^{2} + 3x - x^{3} + {x}^{(12e)}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( x^{2} + 3x - x^{3} + {x}^{(12e)}\right)}{dx}\\=&2x + 3 - 3x^{2} + ({x}^{(12e)}((12*0)ln(x) + \frac{(12e)(1)}{(x)}))\\=&\frac{12{x}^{(12e)}e}{x} - 3x^{2} + 2x + 3\\ \end{split}\end{equation} \]

Your problem has not been solved here? Please take a look at the  hot problems ！