Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 2 - Real Numbers - 2.4 - Exponents - Problem Set 2.4: 94

Answer

$= 78$

Work Step by Step

We plug in $x = -4$ and $y = -1$ to obtain: $= 5x^{2} + 2y^{3}$ $= 5(-4)^{2} + 2(-1)^{3}$ $= 5(16) + 2(-1)$ $= 80 - 2$ $= 78$
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