Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 10 - Radical Expressions and Equations - 10-3 Operations with Radial Expressions - Practice and Problem-Solving Exercises: 41

Answer

$x = \frac{-1+\sqrt7}{4}$

Work Step by Step

Step 1: Use the Product of Cross Products $4x = (2 + \sqrt7)(3 - \sqrt7)$ Step 2: Use FOIL to simplify the right side of the equation and simplify by combining like terms. First + Outer + Inner + Last $4x = 6 - 2\sqrt7 + 3\sqrt7 - 7$ $4x = -1 + \sqrt7$ Step 3: Divide both sides by 4 in order to isolate x. $x = \frac{-1+\sqrt7}{4}$
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.