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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
x+2/x+8/3-2 = x+3/x-2 // - x+3/x-2
x-x+2/x-(3/x)+8/3-2+2 = 0
x-x+2/x-3*x^-1+8/3-2+2 = 0
-1*x^-1 = -8/3 // : -1
x^-1 = 8/3
-1 < 0
1/(x^1) = 8/3 // * x^1
1 = 8/3*x^1 // : 8/3
3/8 = x^1
x = 3/8
x = 3/8
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