Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 5 - Section 5.4 - Multiplying Polynomials - Vocabulary, Readiness & Video Check: 2


c., $x^{2}+14x+49$

Work Step by Step

$(x+7)^{2}$ As shown on page 285, the square of a binomial is given by the following formula: $(a+b)^{2}=a^{2}+2ab+b^{2}$ In this case, $a=x$ and $b=7$. $(x+7)^{2}=x^{2}+2(x)(7)+7^{2}=x^{2}+14x+49$
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