Elementary Algebra

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

Chapter 5 - Exponents and Polynomials - Chapter 5 Test: 8

Answer

$40a^{2}+59a+21$

Work Step by Step

To find the product of $(5a+3)$ and $(8a+7)$, we need to use the distributive property in which each term of the first polynomial is multiplied to each term of the second polynomial: $(5a+3)(8a+7)$ =$5a(8a+7)+3(8a+7)$ =$40a^{2}+35a+24a+21$ =$40a^{2}+59a+21$
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