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D( x )
x = 0
x^2 = 0
x = 0
x = 0
x^2 = 0
x^2 = 0
1*x^2 = 0 // : 1
x^2 = 0
x = 0
x in (-oo:0) U (0:+oo)
2/x+3/x-2+2 = 8/(x^2)-4 // - 8/(x^2)-4
2/x+3/x-(8/(x^2))-2+2+4 = 0
2/x+3/x-8*x^-2-2+2+4 = 0
5*x^-1-8*x^-2+4 = 0
t_1 = x^-1
5*t_1^1-8*t_1^2+4 = 0
5*t_1-8*t_1^2+4 = 0
DELTA = 5^2-(-8*4*4)
DELTA = 153
DELTA > 0
t_1 = (153^(1/2)-5)/(-8*2) or t_1 = (-153^(1/2)-5)/(-8*2)
t_1 = (3*17^(1/2)-5)/(-16) or t_1 = (-3*17^(1/2)-5)/(-16)
t_1 = (3*17^(1/2)-5)/(-16)
x^-1-((3*17^(1/2)-5)/(-16)) = 0
1*x^-1 = (3*17^(1/2)-5)/(-16) // : 1
x^-1 = (3*17^(1/2)-5)/(-16)
-1 < 0
1/(x^1) = (3*17^(1/2)-5)/(-16) // * x^1
1 = ((3*17^(1/2)-5)/(-16))*x^1 // : (3*17^(1/2)-5)/(-16)
-16*(3*17^(1/2)-5)^-1 = x^1
x = -16*(3*17^(1/2)-5)^-1
t_1 = (-3*17^(1/2)-5)/(-16)
x^-1-((-3*17^(1/2)-5)/(-16)) = 0
1*x^-1 = (-3*17^(1/2)-5)/(-16) // : 1
x^-1 = (-3*17^(1/2)-5)/(-16)
-1 < 0
1/(x^1) = (-3*17^(1/2)-5)/(-16) // * x^1
1 = ((-3*17^(1/2)-5)/(-16))*x^1 // : (-3*17^(1/2)-5)/(-16)
-16*(-3*17^(1/2)-5)^-1 = x^1
x = -16*(-3*17^(1/2)-5)^-1
x in { -16*(3*17^(1/2)-5)^-1, -16*(-3*17^(1/2)-5)^-1 }
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