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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)
3/x+1/x-4+4 = 16/(x^2)-16 // - 16/(x^2)-16
3/x+1/x-(16/(x^2))-4+4+16 = 0
3/x+1/x-16*x^-2-4+4+16 = 0
4*x^-1-16*x^-2+16 = 0
t_1 = x^-1
4*t_1^1-16*t_1^2+16 = 0
4*t_1-16*t_1^2+16 = 0
DELTA = 4^2-(-16*4*16)
DELTA = 1040
DELTA > 0
t_1 = (1040^(1/2)-4)/(-16*2) or t_1 = (-1040^(1/2)-4)/(-16*2)
t_1 = (4*65^(1/2)-4)/(-32) or t_1 = (-4*65^(1/2)-4)/(-32)
t_1 = (4*65^(1/2)-4)/(-32)
x^-1-((4*65^(1/2)-4)/(-32)) = 0
1*x^-1 = (4*65^(1/2)-4)/(-32) // : 1
x^-1 = (4*65^(1/2)-4)/(-32)
-1 < 0
1/(x^1) = (4*65^(1/2)-4)/(-32) // * x^1
1 = ((4*65^(1/2)-4)/(-32))*x^1 // : (4*65^(1/2)-4)/(-32)
-32*(4*65^(1/2)-4)^-1 = x^1
x = -32*(4*65^(1/2)-4)^-1
t_1 = (-4*65^(1/2)-4)/(-32)
x^-1-((-4*65^(1/2)-4)/(-32)) = 0
1*x^-1 = (-4*65^(1/2)-4)/(-32) // : 1
x^-1 = (-4*65^(1/2)-4)/(-32)
-1 < 0
1/(x^1) = (-4*65^(1/2)-4)/(-32) // * x^1
1 = ((-4*65^(1/2)-4)/(-32))*x^1 // : (-4*65^(1/2)-4)/(-32)
-32*(-4*65^(1/2)-4)^-1 = x^1
x = -32*(-4*65^(1/2)-4)^-1
x in { -32*(4*65^(1/2)-4)^-1, -32*(-4*65^(1/2)-4)^-1 }
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