evandixon Posted August 14, 2013 Author Posted August 14, 2013 2x, where (x + x) = (x * x) and x >0 2x=x^2 x^2 - 2x = 0 x(x - 2) = 0 x = 0 or 2 (domain applied) x = 2 2(2) = 4 FOUR!
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