Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 5 - Exponents and Polynomials - Chapter 5 Review Problem Set: 19

Answer

$35x^2+15x$

Work Step by Step

RECALL: (i) $a^m \cdot a^n = a^{m+n}$ Use the rule above to obtain: $=5x(7x) + 5x(3) \\=35x^{1+1} + 15x \\=35x^2+15x$
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