Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.2 - Exponents and Radicals - 1.2 Exercises: 17

Answer

a) -64 b) 64 c) -$\frac{27}{25}$

Work Step by Step

Note here that putting parenthesis matters: a) -2$^6$ = -(2$^6$) = - 64 b) (-2$^6$) = (-2)*(-2)*(-2)*(-2)*(-2)*(-2) = 64 c) ($\frac{1}{5}$)$^{2}$ $\times$ (-3)$^3$ = $\frac{1}{25}$ $\times$ (-27) = -$\frac{27}{25}$
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