# Chapter 4 - Polynomials - 4.4 Addition and Subtraction of Polynomials - 4.4 Exercise Set - Page 259: 26

$4.9a^3+5.3a^2-8.8a+4.6$

#### Work Step by Step

Add the polynomials then combine like terms to obtain: $=4.9a^3+3.2a^2-5.1a+2.1a^2-3.7a+4.6 \\=4.9a^3+(3.2a^2+2.1a^2)+(-5.1a-3.7a)+4.6 \\=4.9a^3+5.3a^2+(-8.8a)+4.6 \\=4.9a^3+5.3a^2-8.8a+4.6$

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.