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D( x )
x = 0
x^(-(2/3)) = 0
x^(-(1/3)) = 0
x = 0
x = 0
x^(-(2/3)) = 0
x^(-(2/3)) = 0
x^(-2/3) = 0
1*x^(-2/3) = 0 // : 1
x^(-2/3) = 0
x należy do O
x^(-(1/3)) = 0
x^(-(1/3)) = 0
x^(-1/3) = 0
1*x^(-1/3) = 0 // : 1
x^(-1/3) = 0
x należy do O
x in (-oo:0) U (0:+oo)
6/(x^(-(2/3)))-(1/(x^(-(1/3))))-1 = 0
6/(x^(-2/3))-x^(-(-1/3))-1 = 0
6*x^(2/3)-x^(1/3)-1 = 0
t_1 = x^(1/3)
6*t_1^2-1*t_1^1-1 = 0
6*t_1^2-t_1-1 = 0
DELTA = (-1)^2-(-1*4*6)
DELTA = 25
DELTA > 0
t_1 = (25^(1/2)+1)/(2*6) or t_1 = (1-25^(1/2))/(2*6)
t_1 = 1/2 or t_1 = -1/3
t_1 = -1/3
x^(1/3)+1/3 = 0
1*x^(1/3) = -1/3 // : 1
x^(1/3) = -1/3
( -1/3 < 0 i 1/3 in (0:1) ) => x należy do O
t_1 = 1/2
x^(1/3)-1/2 = 0
1*x^(1/3) = 1/2 // : 1
x^(1/3) = 1/2
x^(1/3) = 1/2 // ^ 3
x = 1/8
x = 1/8
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