Answer
$21x^2+19x+4$
Work Step by Step
$(7x + 4)(3x + 1)$
$=21x^2+7x+12x+4$
$=21x^2+19x+4$
FOIL
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.4 - Polynomials - Exercise Set - Page 56: 24
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