Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 5 - Review Exercises - Page 400: 22



Work Step by Step

Given:$(3x+7y)^2$ Open the given polynomials by applying sum formula of polynomials. This implies $=(3x)^2+(7y)^2+2(3x)(7y)$ or, $=9x^2+49y^2+42xy$ Hence, the result is : $9x^2+49y^2+42xy$
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