Answer
$$-y^3+343x^3-147yx^2+21xy^2$$
Work Step by Step
These factors follow the cube of a binomial pattern listed on page 350. Thus, following this pattern, we get that the answer is:
$$-y^3+343x^3-147yx^2+21xy^2$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 5 Polynomials and Polynomial Functions - 5.3 Add, Subtract, and Multiply Polynomials - 5.3 Exercises - Skill Practice - Page 350: 44
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