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D( x )
x^3-5 = 0
x^3-5 = 0
x^3-5 = 0
1*x^3 = 5 // : 1
x^3 = 5
x^3 = 5 // ^ 1/3
x = 5^(1/3)
x in (-oo:5^(1/3)) U (5^(1/3):+oo)
(x^6-(7*x^3)+10)/(x^3-5) = 0
(x^6-7*x^3+10)/(x^3-5) = 0
(x^6-(7*x^3)+10)/(x^3-5) = 0 // * x^3-5
x^6-(7*x^3)+10 = 0
x^6-7*x^3+10 = 0
t_1 = x^3
1*t_1^2-7*t_1^1+10 = 0
t_1^2-7*t_1+10 = 0
DELTA = (-7)^2-(1*4*10)
DELTA = 9
DELTA > 0
t_1 = (9^(1/2)+7)/(1*2) or t_1 = (7-9^(1/2))/(1*2)
t_1 = 5 or t_1 = 2
t_1 = 2
x^3-2 = 0
1*x^3 = 2 // : 1
x^3 = 2
x^3 = 2 // ^ 1/3
x = 2^(1/3)
t_1 = 5
x^3-5 = 0
1*x^3 = 5 // : 1
x^3 = 5
x^3 = 5 // ^ 1/3
x = 5^(1/3)
x in { 5^(1/3)}
x = 2^(1/3)
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