((x+2/x-2))*(2x+5)

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Solution for ((x+2/x-2))*(2x+5) equation: 


D( x )

x = 0

x = 0

x = 0

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

(x+2/x-2)*(2*x+5) = 0

(x+2*x^-1-2)*(2*x+5) = 0

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

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

(1*x^2-2*x^1+2*x^0)/(x^1) = 0 // * x^2

x^1*(1*x^2-2*x^1+2*x^0) = 0

x^1

x^2-2*x+2 = 0

x^2-2*x+2 = 0

DELTA = (-2)^2-(1*2*4)

DELTA = -4

DELTA < 0

x in { } 

1 = 0

2*x+5 = 0

2*x+5 = 0 // - 5

2*x = -5 // : 2

x = -5/2

x = -5/2

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