Answer
$84$
Work Step by Step
Let's plug in the values we are given for $a$, $b$, and $c$ into the expression:
$(2)^2 - 4(-5)(4)$
Evaluate the exponent first:
$4 - 4(-5)(4)$
Multiply next:
$4 + 80$
Add to solve:
$84$
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 4 - Quadratic Functions and Equations - 4-6 Complete the Square - Practice and Problem-Solving Exercises - Page 239: 100
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