How do you combine (17x^2 + 7x - 14) - (-6x^2 - 5x - 18)?

$\left(17 {x}^{2} + 7 x - 14\right) - \left(- 6 {x}^{2} - 5 x - 18\right)$
$17 {x}^{2} + 7 x - 14 + 6 {x}^{2} + 5 x + 18$
$\textcolor{b l u e}{17 {x}^{2} + 6 {x}^{2}} + \textcolor{red}{7 x + 5 x} - \textcolor{g r e e n}{14 + 18}$
$= \textcolor{b l u e}{23 {x}^{2}} + \textcolor{red}{12 x} + \textcolor{g r e e n}{4}$