Inequality

http://store2.up-00.com/June12/UOH37969.jpg


Is there any idea how to solve it ?

Ugh...that inequality looks ugly. Maybe try some weird factoring or rearranging then use AM-GM or Cauchy-Schwarz...

attraction signs


Just like with equations, the solution to an inequality is a value that makes the inequality true. You can solve inequalities in the same way