There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ -0.75{x}^{2} - 2.25x + 3 - (\frac{2.275376625}{3.5365})(x + 4)\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = -0.75x^{2} - 2.25x - 0.643397886328291x + 0.426408454686837\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( -0.75x^{2} - 2.25x - 0.643397886328291x + 0.426408454686837\right)}{dx}\\=&-0.75*2x - 2.25 - 0.643397886328291 + 0\\=&-1.5x - 2.89339788632829\\ \end{split}\end{equation} \]

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