2/y+1=2y

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Solution for 2/y+1=2y equation: 


D( y )

y = 0

y = 0

y = 0

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

2/y+1 = 2*y // - 2*y

2/y-(2*y)+1 = 0

2/y-2*y+1 = 0

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

(1*y^1-2*y^2+2*y^0)/(y^1) = 0 // * y^2

y^1*(1*y^1-2*y^2+2*y^0) = 0

y^1

y-2*y^2+2 = 0

y-2*y^2+2 = 0

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

DELTA = 17

DELTA > 0

y = (17^(1/2)-1)/(-2*2) or y = (-17^(1/2)-1)/(-2*2)

y = (17^(1/2)-1)/(-4) or y = (17^(1/2)+1)/4

y in { (17^(1/2)-1)/(-4), (17^(1/2)+1)/4} 

y in { (17^(1/2)-1)/(-4), (17^(1/2)+1)/4 }

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