Answer
-5x$^2$-9x-12
Work Step by Step
Distribute the negative sign to the parentheses and then combine like terms.
(x$^2$-5x-3)-(6x$^2$+4x+9)
x$^2$-5x-3-6x$^2$-4x-9
(x$^2$-6x$^2$)+(-5x-4x)+(-3-9)
(-5x$^2$)+(-9x)+(-12)
-5x$^2$-9x-12
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: 57
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