x^2-1/x^2*2x/4x-4

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Solution for x^2-1/x^2*2x/4x-4 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^2-(((2*(1/(x^2))*x)/4)*x)-4 = 0

x^2-1/2-4 = 0

1*x^2 = 9/2 // : 1

x^2 = 9/2

x^2 = 9/2 // ^ 1/2

abs(x) = (9/2)^(1/2)

x = (9/2)^(1/2) or x = -(9/2)^(1/2)

x in { (9/2)^(1/2), -(9/2)^(1/2) }

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