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D( x )
x^3 = 0
(8*x)/(x^3)-((x^6)/(x^3)) = 0
x^3 = 0
x^3 = 0
1*x^3 = 0 // : 1
x^3 = 0
x = 0
(8*x)/(x^3)-((x^6)/(x^3)) = 0
(8*x)/(x^3)-((x^6)/(x^3)) = 0
(8*x)/(x^3)-x^3 = 0
8*x^-2-x^3 = 0
x^-2*(8-x^5) = 0
-1*x^5 = -8 // : -1
x^5 = 8
x^5 = 8 // ^ 1/5
x = 8^(1/5)
1/(x^2) = 0
1*x^-2 = 0 // : 1
x^-2 = 0
x należy do O
x in (-oo:0) U (0:8^(1/5)) U (8^(1/5):+oo)
(((8*x)/(x^3)-((x^6)/(x^3)))^-4)/5 = 0
(((8*x)/(x^3)-x^3)^-4)/5 = 0
1/(5*(8*x^-2-x^3)^4) = 0
8*x^-2-x^3 = 0
x^-2*(8-x^5) = 0
-1*x^5 = -8 // : -1
x^5 = 8
x^5 = 8 // ^ 1/5
x = 8^(1/5)
x^-2*(x-8^(1/5)) = 0
1/(5*(x^-2)^4*(x-8^(1/5))^4) = 0
x belongs to the empty set
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