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: 77

Answer

10x$^2$-7

Work Step by Step

Distribute the negative sign to the parentheses and then subtract vertically. $\qquad7x^2-3$ $\underline{-(-3x^2+4)}$ $\qquad\quad\downarrow$ $\quad7x^2-3$ $\underline{+\,3x^2-4}$ $\quad10x^2-7$
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