5/1x+7x/x-1+5/x-1

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Solution for 5/1x+7x/x-1+5/x-1 equation: 


D( x )

x = 0

x = 0

x = 0

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

(5/1)*x+5/x+(7*x)/x-1-1 = 0

5*x+5/x+(7*x)/x-1-1 = 0

5*x^1+5*x^-1+5*x^0 = 0

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

x^1*(5*x^2+5*x^1+5*x^0) = 0

x^1

5*x^2+5*x+5 = 0

5*x^2+5*x+5 = 0

DELTA = 5^2-(4*5*5)

DELTA = -75

DELTA < 0

x in { } 

x belongs to the empty set

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