2x+1/x=-3

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Solution for 2x+1/x=-3 equation: 


D( x )

x = 0

x = 0

x = 0

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

2*x+1/x = -3 // + 3

2*x+1/x+3 = 0

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

(2*x^2+3*x^1+1*x^0)/(x^1) = 0 // * x^2

x^1*(2*x^2+3*x^1+1*x^0) = 0

x^1

2*x^2+3*x+1 = 0

2*x^2+3*x+1 = 0

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

DELTA = 1

DELTA > 0

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

x = -1/2 or x = -1

x in { -1, -1/2} 

x in { -1, -1/2 }

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