(x-12/3-x)=(x+3/x+15)

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Solution for (x-12/3-x)=(x+3/x+15) equation: 


D( x )

x = 0

x = 0

x = 0

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

x-x-(12/3) = x+3/x+15 // - x+3/x+15

x-x-x-(3/x)-(12/3)-15 = 0

x-x-x-3*x^-1-15-4 = 0

-1*x^1-3*x^-1-19*x^0 = 0

(-1*x^2-19*x^1-3*x^0)/(x^1) = 0 // * x^2

x^1*(-1*x^2-19*x^1-3*x^0) = 0

x^1

-x^2-19*x-3 = 0

-x^2-19*x-3 = 0

DELTA = (-19)^2-(-3*(-1)*4)

DELTA = 349

DELTA > 0

x = (349^(1/2)+19)/(-1*2) or x = (19-349^(1/2))/(-1*2)

x = (349^(1/2)+19)/(-2) or x = (19-349^(1/2))/(-2)

x in { (349^(1/2)+19)/(-2), (19-349^(1/2))/(-2)} 

x in { (349^(1/2)+19)/(-2), (19-349^(1/2))/(-2) }

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