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: 85

Answer

7x$^4$-2x$^3$+3x$^2$-x+2

Work Step by Step

Distribute the negative to the parentheses and then combine like terms vertically. $\quad7x^4-3x^3+2x^2$ $\underline{-(\qquad-\;x^3-x^2+x+2)}$ $\qquad\qquad\quad\downarrow$ $7x^4-3x^3+2x^2$ $\underline{\qquad+\;x^3+x^2-x-2)}$ $7x^4-2x^3+3x^2-x-2$
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