x^2-4/x-2x^2

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Solution for x^2-4/x-2x^2 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

x^2-(2*x^2)-(4/x) = 0

x^2-2*x^2-4*x^-1 = 0

-x^2-4*x^-1 = 0

-x^-1*(x^3+4) = 0

1*x^3 = -4 // : 1

x^3 = -4

x^3 = -4 // ^ 1/3

x = -4^(1/3)

-1/x = 0

-1*x^-1 = 0 // : -1

x^-1 = 0

x należy do O

x = -4^(1/3)

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