(1-(2/x))/(x+(4/9x))

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Solution for (1-(2/x))/(x+(4/9x)) equation: 


D( x )

x+(4/9)*x = 0

x = 0

x+(4/9)*x = 0

x+(4/9)*x = 0

13/9*x = 0 // : 13/9

x = 0

x = 0

x = 0

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

(1-(2/x))/(x+(4/9)*x) = 0

(1-2*x^-1)/(x+(4/9)*x) = 0

(1-2*x^-1)/(13/9*x) = 0

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

x^-1 = 1/2

-1 < 0

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

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

2 = x^1

x = 2

x = 2

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