# How much greater is (-7x^2 + 14x + 17) + (19x^2 - 6x - 20) + (-14x^2 - 18x + 20) + (20x^2 + 19x + 17)?

We can simplify the expression. See below:

#### Explanation:

What we can do with what is here is simplify the expression:

$- 7 {x}^{2} + 14 x + 17 + 19 {x}^{2} - 6 x - 20 - 14 {x}^{2} - 18 x + 20 + 20 {x}^{2} + 19 x + 17$

Group like terms:

$\left(- 7 + 19 - 14 + 20\right) {x}^{2} + \left(14 - 6 - 18 + 19\right) x + \left(17 - 20 + 20 + 17\right)$

$18 {x}^{2} + 9 x + 34$