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posted by calculus Sunday, September 18, 2011 at 3:59pm.

lim x-> 2- = 2x-x^2/x-2

Lim (2x - x^2)/(x-2) , as x --> 2 = lim x(2-x)/(x-2) , since (2-x)/(x-2) = -1 = -x = -2

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