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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
(4/3)*x-(2/x) = -3 // + 3
(4/3)*x-(2/x)+3 = 0
(4/3)*x-2*x^-1+3 = 0
4/3*x^1-2*x^-1+3*x^0 = 0
(4/3*x^2+3*x^1-2*x^0)/(x^1) = 0 // * x^2
x^1*(4/3*x^2+3*x^1-2*x^0) = 0
x^1
(4/3)*x^2+3*x-2 = 0
(4/3)*x^2+3*x-2 = 0
DELTA = 3^2-(-2*4*(4/3))
DELTA = 59/3
DELTA > 0
x = ((59/3)^(1/2)-3)/(2*(4/3)) or x = (-(59/3)^(1/2)-3)/(2*(4/3))
x = 3/8*((59/3)^(1/2)-3) or x = -3/8*((59/3)^(1/2)+3)
x in { -3/8*((59/3)^(1/2)+3), 3/8*((59/3)^(1/2)-3)}
x in { -3/8*((59/3)^(1/2)+3), 3/8*((59/3)^(1/2)-3) }
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