Answer
-4x$^2$-4x-6
Work Step by Step
Distribute the negative sign to the parentheses and then combine like terms.
(x$^2$-8x-9)-(5x$^2$-4x-3)
x$^2$-8x-9-5x$^2$+4x+3
(x$^2$-5x$^2$)+(-8x+4x)+(-9+3)
-4x$^2$+(-4x)+(-6)
-4x$^2$-4x-6
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
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: 61
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