X+3/X-8=0

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Solution for X+3/X-8=0 equation: 


D( X )

X = 0

X = 0

X = 0

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

X+3/X-8 = 0

1*X^1+3*X^-1-8*X^0 = 0

(1*X^2-8*X^1+3*X^0)/(X^1) = 0 // * X^2

X^1*(1*X^2-8*X^1+3*X^0) = 0

X^1

X^2-8*X+3 = 0

X^2-8*X+3 = 0

DELTA = (-8)^2-(1*3*4)

DELTA = 52

DELTA > 0

X = (52^(1/2)+8)/(1*2) or X = (8-52^(1/2))/(1*2)

X = (2*13^(1/2)+8)/2 or X = (8-2*13^(1/2))/2

X in { (8-2*13^(1/2))/2, (2*13^(1/2)+8)/2} 

X in { (8-2*13^(1/2))/2, (2*13^(1/2)+8)/2 }

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