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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
4*x-((3/2)*x)+1 = 2*x-(1/x)+5 // - 2*x-(1/x)+5
4*x-((3/2)*x)-(2*x)+1/x-5+1 = 0
4*x+(-3/2)*x-2*x+1/x-5+1 = 0
1/2*x^1+1*x^-1-4*x^0 = 0
(1/2*x^2-4*x^1+1*x^0)/(x^1) = 0 // * x^2
x^1*(1/2*x^2-4*x^1+1*x^0) = 0
x^1
(1/2)*x^2-4*x+1 = 0
(1/2)*x^2-4*x+1 = 0
DELTA = (-4)^2-(1*4*(1/2))
DELTA = 14
DELTA > 0
x = (14^(1/2)+4)/(2*(1/2)) or x = (4-14^(1/2))/(2*(1/2))
x = 14^(1/2)+4 or x = 4-14^(1/2)
x in { 4-14^(1/2), 14^(1/2)+4}
x in { 4-14^(1/2), 14^(1/2)+4 }
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