GMATJeff Newbie | Next Rank: 10 Posts View User Profile Posts: 8 Joined: Thu Sep 18, 2008 11:18 pm Location: California PowerPrep D.S. by GMATJeff » Sat Nov 29, 2008 4:43 pm Can anyone provide an Explanation to this problem? 1. Is x^4 + y^4 > z^4? (A) x^2 + y^2 > z^2 (B) x + y > z The answer is E. Thank You! Top Quote