8x+80/x-1

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Solution for 8x+80/x-1 equation: 


D( x )

x = 0

x = 0

x = 0

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

8*x+80/x-1 = 0

8*x^1+80*x^-1-1*x^0 = 0

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

x^1*(8*x^2-1*x^1+80*x^0) = 0

x^1

8*x^2-x+80 = 0

8*x^2-x+80 = 0

DELTA = (-1)^2-(4*8*80)

DELTA = -2559

DELTA < 0

x in { } 

x belongs to the empty set

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