# Chapter 10 - Section 10.1 - Adding and Subtracting Polynomials - Exercise Set: 17

-20$y^{3}$+12$y^{2}$-4

#### Work Step by Step

(10$y^{2}$-7)-(20$y^{3}$-2$y^{2}$-3) =10$y^{2}$-7-20$y^{3}$+2$y^{2}$+3 =-20$y^{3}$+10$y^{2}$+2$y^{2}$-7+3 =-20$y^{3}$+12$y^{2}$-4

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.