x/2-2/x=0

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Solution for x/2-2/x=0 equation: 


D( x )

x = 0

x = 0

x = 0

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

x/2-(2/x) = 0

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

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

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

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

x^1

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

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

DELTA = 0^2-(-2*4*(1/2))

DELTA = 4

DELTA > 0

x = (4^(1/2)+0)/(2*(1/2)) or x = (0-4^(1/2))/(2*(1/2))

x = 2 or x = -2

x in { -2, 2} 

x in { -2, 2 }

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