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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
((3/2)*x^1)/2-((3*x^-1)/2) = 0
((3/2)*x)/2+(-3/2)*x^-1 = 0
3/4*x^1-3/2*x^-1 = 0
(3/4*x^2-3/2*x^0)/(x^1) = 0 // * x^2
x^1*(3/4*x^2-3/2*x^0) = 0
x^1
(3/4)*x^2-3/2 = 0
(3/4)*x^2-3/2 = 0
DELTA = 0^2-(4*(3/4)*(-3/2))
DELTA = 9/2
DELTA > 0
x = ((9/2)^(1/2)+0)/(2*(3/4)) or x = (0-(9/2)^(1/2))/(2*(3/4))
x = 2/3*(9/2)^(1/2) or x = 2/3*(9/2)^(1/2)
x in { 2/3*(9/2)^(1/2), 2/3*(9/2)^(1/2)}
x in { 2/3*(9/2)^(1/2), 2/3*(9/2)^(1/2) }
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