Elementary Algebra

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

Chapter 5 - Exponents and Polynomials - 5.3 - Multiplying Polynomials - Problem Set 5.3: 63

Answer

$12a^2-7a-12$

Work Step by Step

Using $(a+b)(c+d)=ab+(ad+bc)+bd$, or the FOIL Method, the given expression, $ (4a+3)(3a-4) ,$ is equivalent to \begin{array}{l}\require{cancel} 12a^2+(-16a+9a)-12 \\\\= 12a^2-7a-12 .\end{array}
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