2x-(6/x)=-1

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Solution for 2x-(6/x)=-1 equation: 


D( x )

x = 0

x = 0

x = 0

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

2*x-(6/x) = -1 // + 1

2*x-(6/x)+1 = 0

2*x-6*x^-1+1 = 0

2*x^1-6*x^-1+1*x^0 = 0

(2*x^2+1*x^1-6*x^0)/(x^1) = 0 // * x^2

x^1*(2*x^2+1*x^1-6*x^0) = 0

x^1

2*x^2+x-6 = 0

2*x^2+x-6 = 0

DELTA = 1^2-(-6*2*4)

DELTA = 49

DELTA > 0

x = (49^(1/2)-1)/(2*2) or x = (-49^(1/2)-1)/(2*2)

x = 3/2 or x = -2

x in { -2, 3/2} 

x in { -2, 3/2 }

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