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D( x )
x^2 = 0
x^2 = 0
x^2 = 0
1*x^2 = 0 // : 1
x^2 = 0
x = 0
x in (-oo:0) U (0:+oo)
x^2-(6*x)+6*x-(16/(x^2))+8 = 0
x^2-6*x+6*x-16*x^-2+8 = 0
x^2-16*x^-2+8 = 0
t_1 = x^2
1*t_1^1-16*t_1^-1+8 = 0
1*t_1^1-16*t_1^-1+8*t_1^0 = 0
(1*t_1^2+8*t_1^1-16*t_1^0)/(t_1^1) = 0 // * t_1^2
t_1^1*(1*t_1^2+8*t_1^1-16*t_1^0) = 0
t_1^1
t_1^2+8*t_1-16 = 0
t_1^2+8*t_1-16 = 0
DELTA = 8^2-(-16*1*4)
DELTA = 128
DELTA > 0
t_1 = (128^(1/2)-8)/(1*2) or t_1 = (-128^(1/2)-8)/(1*2)
t_1 = (8*2^(1/2)-8)/2 or t_1 = (-8*2^(1/2)-8)/2
t_1 in { (-8*2^(1/2)-8)/2, (8*2^(1/2)-8)/2}
t_1 = (-8*2^(1/2)-8)/2
x^2-((-8*2^(1/2)-8)/2) = 0
1*x^2 = (-8*2^(1/2)-8)/2 // : 1
x^2 = (-8*2^(1/2)-8)/2
t_1 = (8*2^(1/2)-8)/2
x^2-((8*2^(1/2)-8)/2) = 0
1*x^2 = (8*2^(1/2)-8)/2 // : 1
x^2 = (8*2^(1/2)-8)/2
x^2 = (8*2^(1/2)-8)/2 // ^ 1/2
abs(x) = ((8*2^(1/2)-8)^(1/2))/(2^(1/2))
x = ((8*2^(1/2)-8)^(1/2))/(2^(1/2)) or x = -(((8*2^(1/2)-8)^(1/2))/(2^(1/2)))
x in { ((8*2^(1/2)-8)^(1/2))/(2^(1/2)), -(((8*2^(1/2)-8)^(1/2))/(2^(1/2))) }
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