## Intermediate Algebra (6th Edition)

8$x^{2}$ + 2b - 22
(3$x^{2}$ - 4b+ 28) + (9$x^{2}$ - 30) - (4$x^{2}$ - 6b + 20) = 3$x^{2}$ - 4b+ 28 + 9$x^{2}$ - 30 - 4$x^{2}$ + 6b - 20 = 8$x^{2}$ + 2b - 22