College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.4 - Page 61: 24



Work Step by Step

$$(7x+4)(3x+1)$$ $$=(7x\times 3x)+(7x\times 1)+(4\times 3x)+(4\times 1)$$ $$=21x^2+7x+12x+4$$ $$=21x^2+19x+4$$
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