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Old 06-03-2004, 11:49 PM   #3
Peter Tsai
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sorry...i didnt see the squareroot in front of your problem

anyways...

whenever you square both sides of the equation ... you lose the distinction of the possibility of one side being negative

for example x^2 = (-x)^2

but realistically "x" does not equal -x unless x = 0.

hope this helps
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