Answer
$= 79$
Work Step by Step
We plug in $x = -2$ and $y = -3$ to obtain:
$= 4x^{2} + 7y^{2}$
$= 4(-2)^{2} + 7(-3)^{2}$
$= 4(4) + 7(9)$
$= 16 + 63$
$= 79$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
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 - Page 76: 93
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