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: 49

Answer

$y^2-19y+84$

Work Step by Step

Using $(a+b)(c+d)=ac+(ad+bc)+bd$, or the FOIL Method, the given expression, $ (y-7)(y-12) ,$ is equivalent to \begin{array}{l}\require{cancel} y^2+(-12y-7y)+84 \\\\= y^2-19y+84 .\end{array}
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