## Algebra: A Combined Approach (4th Edition)

-7$x^{2}$ + 12x + 5
(- 7$x^{2}$ + 4x + 7 ) - ( -8x + 2 ) -7$x^{2}$ + 4x + 7 + 8x -2 -7$x^{2}$ + ( 4x + 8x ) + ( 7 - 2) combine like terms -7$x^{2}$ + 12x + 5 simplify