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 - Section 5.5 - Factoring Special Forms - Exercise Set - Page 372: 83



Work Step by Step

The given binomial can be written as: $=(xy)^3+3^3$ This binomial is a sum of two cubes. RECALL: $a^3+b^3=(a+b)(a^2-ab+b^2)$ Factor the difference of two cubes using the formula above with $a=xy$ and $b=3$ to obtain: $=(xy+3)[(xy)^2-xy(3)+3^2] \\=(xy+3)(x^2y^2-3xy+9)$
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