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.1: 160

Answer

a). 4 b). 6 c). subtracted

Work Step by Step

a). $\frac{b^{7}}{b^{3}}$ = $\frac{b.b.b.b.b.b.b}{b.b.b}$ = $b^{7-3}$ = $b^{4}$ b). $\frac{b^{8}}{b^{2}}$ = $\frac{b.b.b.b.b.b.b.b}{b.b}$ = $b^{8-2}$ = $b^{6}$ c). When dividing exponential expressions with the same base the exponents will be subtracted.
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