-2/x+2+2x+1/x

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Solution for -2/x+2+2x+1/x equation: 


D( x )

x = 0

x = 0

x = 0

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

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

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

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

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

x^1

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

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

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

DELTA = 12

DELTA > 0

x = (12^(1/2)-2)/(2*2) or x = (-12^(1/2)-2)/(2*2)

x = (2*3^(1/2)-2)/4 or x = (-2*3^(1/2)-2)/4

x in { (-2*3^(1/2)-2)/4, (2*3^(1/2)-2)/4} 

x in { (-2*3^(1/2)-2)/4, (2*3^(1/2)-2)/4 }

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