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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
(6/4)*x-(3/16) = 3/x // - 3/x
(6/4)*x-(3/x)-(3/16) = 0
(6/4)*x-3*x^-1-3/16 = 0
3/2*x^1-3*x^-1-3/16*x^0 = 0
(3/2*x^2-3/16*x^1-3*x^0)/(x^1) = 0 // * x^2
x^1*(3/2*x^2-3/16*x^1-3*x^0) = 0
x^1
(3/2)*x^2+(-3/16)*x-3 = 0
(3/2)*x^2+(-3/16)*x-3 = 0
DELTA = (-3/16)^2-(-3*4*(3/2))
DELTA = 4617/256
DELTA > 0
x = ((4617/256)^(1/2)-(-3/16))/(2*(3/2)) or x = (-(-3/16)-(4617/256)^(1/2))/(2*(3/2))
x = ((4617/256)^(1/2)+3/16)/3 or x = (3/16-(4617/256)^(1/2))/3
x in { (3/16-(4617/256)^(1/2))/3, ((4617/256)^(1/2)+3/16)/3}
x in { (3/16-(4617/256)^(1/2))/3, ((4617/256)^(1/2)+3/16)/3 }
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