-4x+5/x+9=6x+85/x+9

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Solution for -4x+5/x+9=6x+85/x+9 equation: 


D( x )

x = 0

x = 0

x = 0

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

5/x-4*x+9 = 6*x+85/x+9 // - 6*x+85/x+9

5/x-4*x-(6*x)-(85/x)-9+9 = 0

5/x-4*x-6*x-85*x^-1-9+9 = 0

-10*x^1-80*x^-1 = 0

(-10*x^2-80*x^0)/(x^1) = 0 // * x^2

x^1*(-10*x^2-80*x^0) = 0

x^1

-10*x^2-80 = 0

-10*x^2-80 = 0

DELTA = 0^2-(-80*(-10)*4)

DELTA = -3200

DELTA < 0

x in { } 

x belongs to the empty set

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