## College Algebra (11th Edition)

$x^{2}$ - x + 2
(5$x^{2}$ - 4x + 7) + (-4$x^{2}$ + 3x - 5) Group like terms together. (5$x^{2}$ - 4$x^{2}$) + (-4x + 3x) + (7 - 5) Add like terms. $x^{2}$ - x + 2