Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 5 - Section 5.3 - Addition and Subtraction of Polynomials - Exercise - Page 221: 58



Work Step by Step

We subtract the $x^3$-terms as follows $$ 8x^3-14x^3=-6x^3 $$ then subtract the $x^2$-terms as follows $$ 6x^2-2x^2=4x^2 $$ then subtract the $x$-terms as follows $$ -15x-9x=-24x $$ then subtract the constant terms as follows $$ 7+1=8 $$ Hence, the result is $$-6x^3+4x^2-24x+8.$$
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