Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 4 Quadratic Functions and Factoring - 4.7 Complete the Square - 4.7 Exercises - Mixed Review - Page 291: 71



Work Step by Step

$a=4,b=-1,c=3$ $ b^{2}-4ac\qquad$ ...substitute $4$ for $a,\ -1$ for $b$ and $3$ for $c$. $=(-1)^{2}-4\cdot 4\cdot 3\qquad$ ...evaluate $(-1)^{2}$ $=1-4\cdot 4\cdot 3\qquad$ ...multiply before subtracting $=1-48$ $=-47$
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