gmat prep algebra fractions

Ian Stewart: GMAT Instructor; Posts: 2621; Joined: Mon Jun 02, 2008 3:17 am; Location: Montreal; Thanked: 1090 times; Followed by:355 members; GMAT Score:780

by Ian Stewart » Thu Aug 28, 2008 1:57 pm

This is an infamous question in GMATPrep, because it contains a typo. As presented, there is not a unique solution. It should read:

2^[(x+y)^2] / 2^[(x-y)^2]

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