My Math Forum solve the inequality: x-2|x|>2
 User Name Remember Me? Password

 Algebra Pre-Algebra and Basic Algebra Math Forum

 February 6th, 2013, 08:08 AM #1 Newbie   Joined: Feb 2013 Posts: 6 Thanks: 0 solve the inequality: x-2|x|>2 solve the inequality: x-2|x|>2
 February 6th, 2013, 08:21 AM #2 Global Moderator     Joined: Oct 2008 From: London, Ontario, Canada - The Forest City Posts: 7,958 Thanks: 1146 Math Focus: Elementary mathematics and beyond Re: solve the inequality: x-2|x|>2 No solution. x - 2|x| > 2 x - 2 > 2|x|.
 February 6th, 2013, 11:22 AM #3 Math Team   Joined: Sep 2007 Posts: 2,409 Thanks: 6 Re: solve the inequality: x-2|x|>2 If x> 0 then inequality is x- 2x= -x> 2 so that x< -2. That's impossible with x> 0 If x< 0 then inequality is x-(-2x)= 3x> 2 so that x> 2/3. Again, that is impossible with x< 0. And, of course, 0- 2(0)= 0 is not larger than 2. There is no x satisfying this inequality.

 Tags inequality, solve, x2|x|>2

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post Punch Algebra 3 July 2nd, 2012 12:43 PM jatt-rockz Algebra 5 November 10th, 2011 05:07 AM silvercats Linear Algebra 13 June 6th, 2011 07:48 AM xx3004 Algebra 8 December 22nd, 2010 09:00 PM sikwn32 Algebra 5 August 30th, 2009 02:12 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top

Copyright © 2019 My Math Forum. All rights reserved.