Answer
5
Work Step by Step
Direct substitution means that wherever we see the value $x$, we plug in the given value. Doing this, we find:
$$ (-2)^4+(2)(-2)^3 +3(-2)^2 -7 \\ 128-128+12-7\\5$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 5 Polynomials and Polynomial Functions - 5.2 Evaluate and Graph Polynomial Functions - Guided Practice for Examples 1 and 2 - Page 338: 4
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