Answer
$ \frac{-1\pm\sqrt {13}}{6}$
Work Step by Step
Using the quadratic formula:
$3x^2+x-1=0 \longrightarrow x=\frac{-1\pm\sqrt {1+4(3)}}{2(3)}=\frac{-1\pm\sqrt {13}}{6}$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 7 - Analytic Trigonometry - Chapter Review - Cumulative Review - Page 508: 1
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.
