x+11/x^2-49x

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Solution for x+11/x^2-49x equation: 


D( x )

x^2 = 0

x^2 = 0

x^2 = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

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

x-(49*x)+11/(x^2) = 0

x-49*x+11/(x^2) = 0

11*x^-2-48*x = 0

x*(11*x^-3-48) = 0

11*x^-3 = 48 // : 11

x^-3 = 48/11

-3 < 0

1/(x^3) = 48/11 // * x^3

1 = 48/11*x^3 // : 48/11

11/48 = x^3

x^3 = 11/48 // ^ 1/3

x = (11/48)^(1/3)

x = 0

x = 0

x in { 0} 

x = (11/48)^(1/3)

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