Answer
a. $48x^{2a}$
b. $y^{10b+3}$
Work Step by Step
a.
$3x^{4a}(4x^{-a})^2$
$=3x^{4a}(4^2x^{-2a})$
$=(3)(4^2)(x^{4a-2a})$
$=(48)(x^{2a})$
$=48x^{2a}$
b.
$\frac{(y^{4b})^3}{y^{2b-3}}$
$=\frac{y^{12b}}{y^{2b-3}}$
$=y^{12b-(2b-3)}$
$=y^{10b+3}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 9 - Cumulative Review - Page 677: 36
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