if x is 1, then I X-6 I should be = 5 and not >5
x cannot be 1, since the statement says that x^2 < 1, and not that x^2 <
From the statement x^2 < 1, we can be certain that -1 < x < 1, and that x cannot be equal to either -1 or 1.
Nov 2011: After years of development, I am now making my advanced Quant books and high-level problem sets available for sale. Contact me at ianstewartgmat at gmail.com for details.
Private GMAT Tutor based in Toronto