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D( x )
8*v^6*x^6 = 0
8*v^6*x^6 = 0
8*v^6*x^6 = 0
8*v^6*x^6 = 0 // : 8*v^6
x^6 = 0
x = 0
x in (-oo:0) U (0:+oo)
(4*x^5*y^3-(12*x^3))/(8*v^6*x^6) = 0
(4*x^5*y^3-12*x^3)/(8*v^6*x^6) = 0
4*x^5*y^3-12*x^3 = 0
4*x^3*(x^2*y^3-3) = 0
x^2*y^3 = 3 // : y^3
x^2 = 3/(y^3)
x^2 = 3/(y^3) // ^ 1/2
abs(x) = (3^(1/2))/(y^(3/2))
x = (3^(1/2))/(y^(3/2)) or x = -((3^(1/2))/(y^(3/2)))
4*x^3*(x-3^(1/2)*y^(-3/2))*(x+3^(1/2)*y^(-3/2)) = 0
(4*x^3*(x-3^(1/2)*y^(-3/2))*(x+3^(1/2)*y^(-3/2)))/(8*v^6*x^6) = 0
( 4*x^3 )
4*x^3 = 0 // : 4
x^3 = 0
x = 0
( x+3^(1/2)*y^(-3/2) )
x+3^(1/2)*y^(-3/2) = 0 // - 3^(1/2)*y^(-3/2)
x = -(3^(1/2)*y^(-3/2))
( x-3^(1/2)*y^(-3/2) )
x-3^(1/2)*y^(-3/2) = 0 // + -3^(1/2)*y^(-3/2)
x = -(-3^(1/2)*y^(-3/2))
x in { 0}
x in { -(3^(1/2)*y^(-3/2)), -(-3^(1/2)*y^(-3/2)) }
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