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D( x )
x^2-(2*x)+3 = 0
x^2-(2*x)+3 = 0
x^2-(2*x)+3 = 0
x^2-2*x+3 = 0
x^2-2*x+3 = 0
DELTA = (-2)^2-(1*3*4)
DELTA = -8
DELTA < 0
x in (-oo:+oo)
(x^4+3*x^2+10)/(x^2-(2*x)+3) = 0
(x^4+3*x^2+10)/(x^2-2*x+3) = 0
x^2-2*x+3 = 0
x^2-2*x+3 = 0
DELTA = (-2)^2-(1*3*4)
DELTA = -8
DELTA < 0
1 = 0
x^4+3*x^2+10 = 0
(x^4+3*x^2+10)/(x^2-(2*x)+3) = 0 // * x^2-(2*x)+3
x^4+3*x^2+10 = 0
t_1 = x^2
1*t_1^2+3*t_1^1+10 = 0
t_1^2+3*t_1+10 = 0
DELTA = 3^2-(1*4*10)
DELTA = -31
DELTA < 0
x belongs to the empty set
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