199. Find the derivative of the function $y=5 x^{2}-x+4$.
Solution. $\left(5 x^{2}-x+4\right)^{\prime}=\left(5 x^{2}\right)^{\prime}-(x)^{\prime}+(4)^{\prime}=5\left(x^{2}\right)^{\prime}-1=10 x-1$. 200-214. Find the derivatives of the following functions:

![](https://cdn.mathpix.com/cropped/2024_05_22_db4d450c77c65a914ec1g-201.jpg?height=54&width=793&top_left_y=1394&top_left_x=165)