Introductory Algebra for College Students (7th Edition)

Published by Pearson

Chapter 5 - Section 5.1 - Adding and Subtracting Polynomials - Exercise Set - Page 349: 78

Answer

14y$^2$-8

Work Step by Step

Distribute the negative sign to the parentheses and then combine terms vertically. $\qquad9y^2-6$ $\underline{-(-5y^2+2)}$ $\qquad\;\downarrow$ $\quad9y^2-6$ $\underline{\;+5y^2-2}$ $\quad14y^2-8$

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