(x+2.5/x^2-x-2)

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Solution for (x+2.5/x^2-x-2) 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-x+2.5/(x^2)-2 = 0

2.5*x^-2 = 2 // : 2.5

x^-2 = 0.8

-2 < 0

1/(x^2) = 0.8 // * x^2

1 = 0.8*x^2 // : 0.8

1.25 = x^2

x^2 = 1.25 // ^ 1/2

abs(x) = 1.25^(1/2)

x = 1.25^(1/2) or x = -1.25^(1/2)

x in { 1.25^(1/2), -1.25^(1/2) }

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