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: 79



Work Step by Step

$$(3x+5y)(3x-5y)$$ The product of the sum and the difference of two terms can be found using this formula: $(a+b)(a-b) = a^2-b^2$. $$=(3x)^2-(5y)^2$$ $$=9x^2-25y^2$$
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