Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 5 - Review - Page 404: 42



Work Step by Step

Step 1: $(\frac{x^{-3}y^{-4}}{x^{-2}y^{-5}})^{-3}$ Step 2: $\frac{(x^{-3}y^{-4})^{-3}}{(x^{-2}y^{-5})^{-3}}$ Step 3: $\frac{(x^{-3})^{-3}(y^{-4})^{-3}}{(x^{-2})^{-3}(y^{-5})^{-3}}$ Step 4: $\frac{x^{9}y^{12}}{x^{6}y^{15}}$ Step 5: $x^{9-6}y^{12-15}$ Step 6: $x^{3}y^{-3}$ Step 7: $\frac{x^{3}}{y^{3}}$
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