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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
(3/2)*x-(10/x)+1+3 = 1 // - 1
(3/2)*x-(10/x)-1+1+3 = 0
(3/2)*x-10*x^-1-1+1+3 = 0
3/2*x^1-10*x^-1+3*x^0 = 0
(3/2*x^2+3*x^1-10*x^0)/(x^1) = 0 // * x^2
x^1*(3/2*x^2+3*x^1-10*x^0) = 0
x^1
(3/2)*x^2+3*x-10 = 0
(3/2)*x^2+3*x-10 = 0
DELTA = 3^2-(-10*4*(3/2))
DELTA = 69
DELTA > 0
x = (69^(1/2)-3)/(2*(3/2)) or x = (-69^(1/2)-3)/(2*(3/2))
x = (69^(1/2)-3)/3 or x = (-(69^(1/2)+3))/3
x in { (-(69^(1/2)+3))/3, (69^(1/2)-3)/3}
x in { (-(69^(1/2)+3))/3, (69^(1/2)-3)/3 }
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