5/x=x/12

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Solution for 5/x=x/12 equation: 


D( x )

x = 0

x = 0

x = 0

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

5/x = x/12 // - x/12

5/x-(x/12) = 0

5*x^-1-1/12*x^1 = 0

(5*x^0-1/12*x^2)/(x^1) = 0 // * x^2

x^1*(5*x^0-1/12*x^2) = 0

x^1

(-1/12)*x^2+5 = 0

(-1/12)*x^2+5 = 0

DELTA = 0^2-(4*5*(-1/12))

DELTA = 5/3

DELTA > 0

x = ((5/3)^(1/2)+0)/(2*(-1/12)) or x = (0-(5/3)^(1/2))/(2*(-1/12))

x = -6*(5/3)^(1/2) or x = 6*(5/3)^(1/2)

x in { -6*(5/3)^(1/2), 6*(5/3)^(1/2)} 

x in { -6*(5/3)^(1/2), 6*(5/3)^(1/2) }

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