Answer
$y^2+y-12$
Work Step by Step
Using $(a+b)(c+d)=ab+ad+bc+bd$ or the FOIL Method, the product of the given expression, $
(y-3)(y+4)
,$ is
\begin{array}{l}\require{cancel}
y(y)+y(4)-3(y)-3(4)
\\\\=
y^2+4y-3y-12
\\\\=
y^2+y-12
.\end{array}
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 5 - Section 5.3 - Special Products - Exercise Set - Page 367: 4
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