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