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D( x )
x < 0
x < 0
x in <0:+oo)
4*x^(3/2)*y^(48^(1/2))+x^(1/2)*x^(3^(1/2))*y = 0
4*x^(3/2)*y^6.92820323+x^2.23205081*y = 0
x^(3/2)*y*(x^0.73205081+4*y^5.92820323) = 0
1*x^0.73205081 = -(4*y^5.92820323) // : 1
x^0.73205081 = -4*y^5.92820323
x^0 = (-4*y^5.92820323)^(1/0.73205081) // ^ 1/0
abs(x) = (-4)^(1.3660254/0)*y^(8.098076188542042/0)
x = (-4)^(1.3660254/0)*y^(8.098076188542042/0) or x = -((-4)^(1.3660254/0)*y^(8.098076188542042/0))
x^(3/2)*y = 0
x^(3/2)*y = 0 // : y
x^(3/2) = 0
x = 0
x in { (-4)^(1.3660254/0)*y^(8.098076188542042/0), -((-4)^(1.3660254/0)*y^(8.098076188542042/0)), 0 }
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