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: 93

Answer

$= 79$

Work Step by Step

We plug in $x = -2$ and $y = -3$ to obtain: $= 4x^{2} + 7y^{2}$ $= 4(-2)^{2} + 7(-3)^{2}$ $= 4(4) + 7(9)$ $= 16 + 63$ $= 79$
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