Answer
$\frac{4\pm 3\sqrt 2}{2}$
See graph.
Work Step by Step
Step 1. $-2x^2+8x+1=0 \longrightarrow x=\frac{-8\pm\sqrt {64-4(-2)}}{2(-2)}=\frac{4\pm 3\sqrt 2}{2}$
Step 2. See graph.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 2 - Linear and Quadratic Functions - Section 2.7 Complex Zeros of a Quadratic Function* - 2.7 Assess Your Understanding - Page 178: 23
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
