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D( y )
y+2 = 0
y+2 = 0
y+2 = 0
y+2 = 0 // - 2
y = -2
y in (-oo:-2) U (-2:+oo)
(3/2)*y = 16/(y+2) // - 16/(y+2)
(3/2)*y-(16/(y+2)) = 0
(3/2)*y-16*(y+2)^-1 = 0
(3*y)/2-16/(y+2) = 0
(-16*2)/(2*(y+2))+(3*y*(y+2))/(2*(y+2)) = 0
3*y*(y+2)-16*2 = 0
3*y^2+6*y-32 = 0
3*y^2+6*y-32 = 0
3*y^2+6*y-32 = 0
DELTA = 6^2-(-32*3*4)
DELTA = 420
DELTA > 0
y = (420^(1/2)-6)/(2*3) or y = (-420^(1/2)-6)/(2*3)
y = (2*105^(1/2)-6)/6 or y = (-2*105^(1/2)-6)/6
(y-((-2*105^(1/2)-6)/6))*(y-((2*105^(1/2)-6)/6)) = 0
((y-((-2*105^(1/2)-6)/6))*(y-((2*105^(1/2)-6)/6)))/(2*(y+2)) = 0
((y-((-2*105^(1/2)-6)/6))*(y-((2*105^(1/2)-6)/6)))/(2*(y+2)) = 0 // * 2*(y+2)
(y-((-2*105^(1/2)-6)/6))*(y-((2*105^(1/2)-6)/6)) = 0
( y-((-2*105^(1/2)-6)/6) )
y-((-2*105^(1/2)-6)/6) = 0 // + (-2*105^(1/2)-6)/6
y = (-2*105^(1/2)-6)/6
( y-((2*105^(1/2)-6)/6) )
y-((2*105^(1/2)-6)/6) = 0 // + (2*105^(1/2)-6)/6
y = (2*105^(1/2)-6)/6
y in { (-2*105^(1/2)-6)/6, (2*105^(1/2)-6)/6 }
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