9x+13/x+4

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Solution for 9x+13/x+4 equation: 


D( x )

x = 0

x = 0

x = 0

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

9*x+13/x+4 = 0

9*x^1+13*x^-1+4*x^0 = 0

(9*x^2+4*x^1+13*x^0)/(x^1) = 0 // * x^2

x^1*(9*x^2+4*x^1+13*x^0) = 0

x^1

9*x^2+4*x+13 = 0

9*x^2+4*x+13 = 0

DELTA = 4^2-(4*9*13)

DELTA = -452

DELTA < 0

x in { } 

x belongs to the empty set

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