1/x+4x=4

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Solution for 1/x+4x=4 equation: 


D( x )

x = 0

x = 0

x = 0

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

4*x+1/x = 4 // - 4

4*x+1/x-4 = 0

4*x^1+1*x^-1-4*x^0 = 0

(4*x^2-4*x^1+1*x^0)/(x^1) = 0 // * x^2

x^1*(4*x^2-4*x^1+1*x^0) = 0

x^1

4*x^2-4*x+1 = 0

4*x^2-4*x+1 = 0

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

DELTA = 0

x = 4/(2*4)

x = 1/2 or x = 1/2

x in { 1/2, 1/2} 

x in { 1/2, 1/2 }

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