(2x+3)(2/x+3)=1

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Solution for (2x+3)(2/x+3)=1 equation: 


D( x )

x = 0

x = 0

x = 0

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

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

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

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

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

6*x+6*x^-1+12 = 0

6*x+6*x^-1+12 = 0

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

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

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

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

x^1

x^2+2*x+1 = 0

x^2+2*x+1 = 0

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

DELTA = 0

x = -2/(1*2)

x = -1 or x = -1

x in { -1, -1} 

6*(x+1)^2 = 0

6*(x+1)^2 = 0

x+1 = 0 // - 1

x = -1

x in { -1, -1 }

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