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 - Review Exercises: 10

Answer

3x$^2$-7x+9

Work Step by Step

Distribute the negative sign to the parentheses and then combine like terms vertically. $\quad7x^2-9x+2$ $\underline{-(4x^2-2x-7)}$ $\qquad$$\quad$$\downarrow$ $\quad7x^2-9x+2$ $\underline{-4x^2+2x+7}$ $\quad3x^2-7x+9$
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