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x in (-oo:+oo)
y = (-3/2)*x^2-(6*x)+2 // - (-3/2)*x^2-(6*x)+2
6*x-((-3/2)*x^2)+y-2 = 0
(3/2)*x^2+6*x+y-2 = 0
3/2*x^2+6*x+y-2 = 0
DELTA = 6^2-(3/2*4*(y-2))
DELTA = 36-6*(y-2)
36-6*(y-2) = 0
36-6*(y-2) = 0
48-6*y = 0
48-6*y = 0
48-6*y = 0 // - 48
-6*y = -48 // : -6
y = -48/(-6)
y = 8
DELTA = 0 <=> t_1 = 8
x = -6/(3/2*2) i y = 8
x = -2 i y = 8
( x = ((36-6*(y-2))^(1/2)-6)/(3/2*2) or x = (-(36-6*(y-2))^(1/2)-6)/(3/2*2) ) i y > 8
( x = ((36-6*(y-2))^(1/2)-6)/3 or x = (-((36-6*(y-2))^(1/2)+6))/3 ) i y > 8
y-8 > 0
y-8 > 0 // + 8
y > 8
x in { -2, ((36-6*(y-2))^(1/2)-6)/3, (-((36-6*(y-2))^(1/2)+6))/3 }
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