Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 5 - Section 5.1 - Adding and Subtracting Polynomials - Exercise Set - Page 349: 84



Work Step by Step

Distribute the negative sign to the parentheses and then combine like terms vertically. $\qquad4y^3+5y^2+7y+11$ $\underline{-(-5y^3+6y^2-9y-3)}$ $\qquad\qquad\downarrow$ $\quad4y^3+5y^2+7y+11$ $\underline{+\;5y^3-6y^2+9y+3}$ $\quad9y^3-y^2+16y+14$
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