Chapter 3: Derivatives - Section 3.3 Differentiation Rules - Exercises 3.3 - Page 125: 2

$y'=2x+1$ $y"=2$

To get the first derivative, use the power and constant rule. The derivative of $x^{2}+x$ is $2x+1$ and derivative of 8 is 0. To get the second derivative, apply the power rule and constant to the first derivative and you will get y"=2.