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D( x )
5.76*x^(10^4) = 0
5.76*x^(10^4) = 0
5.76*x^(10^4) = 0
5.76*x^10000 = 0 // : 5.76
x^10000 = 0
x = 0
x in (-oo:0) U (0:+oo)
(4.25*x^(10^9))/(5.76*x^(10^4)) = 0
0.73784722*x^999990000 = 0 // : 0.73784722
x^999990000 = 0
x = 0
x in { 0}
x belongs to the empty set
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