Answer
4$y^{3}$ + 10$y^{2}$+y -2
Work Step by Step
(4$y^{3}$+7y - 5) + (10$y^{2}$- 6y+3)
The like terms are 7y and -6y (both containing y), and the constant terms -5 and 3.
We begin by grouping these pairs of like terms.
= 4$y^{3}$ + 10$y^{2}$ +(7y-6y)+(-5+3)
= 4$y^{3}$ + 10$y^{2}$+ y -2