5/x+9/4x

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Solution for 5/x+9/4x equation: 


D( x )

x = 0

x = 0

x = 0

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

(9/4)*x+5/x = 0

9/4*x^1+5*x^-1 = 0

(9/4*x^2+5*x^0)/(x^1) = 0 // * x^2

x^1*(9/4*x^2+5*x^0) = 0

x^1

(9/4)*x^2+5 = 0

(9/4)*x^2+5 = 0

DELTA = 0^2-(4*5*(9/4))

DELTA = -45

DELTA < 0

x in { } 

x belongs to the empty set

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