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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
8*x^((-1)^-1)-(((3*x^2)/(1^2))*x^2) = 0
8*x^((-1)^-1)-3*x^4 = 0
8*x^-1-3*x^4 = 0
x^-1*(8-3*x^5) = 0
-3*x^5 = -8 // : -3
x^5 = 8/3
x^5 = 8/3 // ^ 1/5
x = (8/3)^(1/5)
1/x = 0
1*x^-1 = 0 // : 1
x^-1 = 0
x naleu017Cy do O
x = (8/3)^(1/5)
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