Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 8 - Section 8.2 - The Quadratic Formula - Exercise Set - Page 607: 7


{$\dfrac{7 - \sqrt{85}}{6},\dfrac{7 + \sqrt{85}}{6}$}

Work Step by Step

Quadratic formula suggests that $x=\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}$ Given: $3x^2-7x=3$ This can be re-written as: $3x^2-7x-3=0$ Thus, $x=\dfrac{-(-7) \pm \sqrt{(-7)^2-4(3)(-3)}}{2(3)}$ or, $x=\dfrac{7 \pm \sqrt{85}}{6}$ or, $x=\dfrac{7 - \sqrt{85}}{6},\dfrac{7 + \sqrt{85}}{6}$ Our solution set is: {$\dfrac{7 - \sqrt{85}}{6},\dfrac{7 + \sqrt{85}}{6}$}
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.