2x-48/x+3=4

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Solution for 2x-48/x+3=4 equation: 


D( x )

x = 0

x = 0

x = 0

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

2*x-(48/x)+3 = 4 // - 4

2*x-(48/x)-4+3 = 0

2*x-48*x^-1-4+3 = 0

2*x^1-48*x^-1-1*x^0 = 0

(2*x^2-1*x^1-48*x^0)/(x^1) = 0 // * x^2

x^1*(2*x^2-1*x^1-48*x^0) = 0

x^1

2*x^2-x-48 = 0

2*x^2-x-48 = 0

DELTA = (-1)^2-(-48*2*4)

DELTA = 385

DELTA > 0

x = (385^(1/2)+1)/(2*2) or x = (1-385^(1/2))/(2*2)

x = (385^(1/2)+1)/4 or x = (1-385^(1/2))/4

x in { (1-385^(1/2))/4, (385^(1/2)+1)/4} 

x in { (1-385^(1/2))/4, (385^(1/2)+1)/4 }

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