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@ZornTaov
Created May 15, 2015 11:35
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x = y
x^2 = xy multiply both sides by x
x^2 - y^2 = xy - y^2 subtract y^2 from each side
(x + y) (x - y) = y(x - y) factor
x + y = y divide out x - y
2y = y substitute y for x from x = y
2 = 1 PROFIT
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