## Introductory Algebra for College Students (7th Edition)

38$x^{2}$ + 17x - 24
(11$x^{2}$ + 7x - 4) + (27$x^{2}$+10x-20) The like terms are 11$x^{2}$ and 27$x^{2}$ containing the same variable to the same power($x^{2}$), as well as 7x and 10x (both containing x), and the constant terms -4 and -20. We begin by grouping these pairs of like terms. (11$x^{2}$ + 27$x^{2}$) + (7x + 10x) +(-4 - 20) = 38$x^{2}$ + 17x - 24