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x in (-oo:+oo)
X = (-1/8)*(y-3)^2-5 // - (-1/8)*(y-3)^2-5
X-((-1/8)*(y-3)^2)+5 = 0
(1/8)*(y-3)^2+X+5 = 0
1/8*(y-3)^2+X+5 = 0
1/8*(y-3)^2+X+5 = 0
X+1/8*y^2-3/4*y+9/8+5 = 0
X+1/8*y^2-3/4*y+49/8 = 0
X+1/8*y^2-3/4*y+49/8 = 0
x belongs to the empty set
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