Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 5 - Section 5.3 - Polynomials and Polynomial Functions - Exercise Set: 43

Answer

$4.5x^{3}+.2x^{2}-3.8x+9.1$

Work Step by Step

We are asked to add $(.6x^{3}+1.2x^{2}-4.5x+9.1)+(3.9x^{3}-x^{2}+.7x)$. We can combine like terms to add. $(.6x^{3}+3.9x^{3})+(1.2x^{2}-x^{2})+(-4.5x+.7x)+9.1=4.5x^{3}+.2x^{2}-3.8x+9.1$
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