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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
2/x-2 = 572*x-1 // - 572*x-1
2/x-(572*x)-2+1 = 0
2/x-572*x-2+1 = 0
2*x^-1-572*x^1-1*x^0 = 0
(2*x^0-572*x^2-1*x^1)/(x^1) = 0 // * x^2
x^1*(2*x^0-572*x^2-1*x^1) = 0
x^1
2-572*x^2-x = 0
2-572*x^2-x = 0
DELTA = (-1)^2-(-572*2*4)
DELTA = 4577
DELTA > 0
x = (4577^(1/2)+1)/(-572*2) or x = (1-4577^(1/2))/(-572*2)
x = (4577^(1/2)+1)/(-1144) or x = (1-4577^(1/2))/(-1144)
x in { (4577^(1/2)+1)/(-1144), (1-4577^(1/2))/(-1144)}
x in { (4577^(1/2)+1)/(-1144), (1-4577^(1/2))/(-1144) }
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