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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
2/x+3 = (7/6)*x-2 // - (7/6)*x-2
2/x-((7/6)*x)+2+3 = 0
(-7/6)*x+2/x+2+3 = 0
2*x^-1-7/6*x^1+5*x^0 = 0
(5*x^1-7/6*x^2+2*x^0)/(x^1) = 0 // * x^2
x^1*(5*x^1-7/6*x^2+2*x^0) = 0
x^1
(-7/6)*x^2+5*x+2 = 0
(-7/6)*x^2+5*x+2 = 0
DELTA = 5^2-(2*4*(-7/6))
DELTA = 103/3
DELTA > 0
x = ((103/3)^(1/2)-5)/(2*(-7/6)) or x = (-(103/3)^(1/2)-5)/(2*(-7/6))
x = -3/7*((103/3)^(1/2)-5) or x = 3/7*((103/3)^(1/2)+5)
x in { -3/7*((103/3)^(1/2)-5), 3/7*((103/3)^(1/2)+5)}
x in { -3/7*((103/3)^(1/2)-5), 3/7*((103/3)^(1/2)+5) }
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