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 - Page 231: 34



Work Step by Step

RECALL: $(x+y) ^2=x^2 +2xy +y^2$ Use the formula above where $x=3a$ and $y=5$ to obtain: $=(3a)^2+2(3a)(5) +5^2 \\=9a^2+30a+25$
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