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x in (-oo:+oo)
(1/2)*x-8 = (3/2)*x^2 // - (3/2)*x^2
(1/2)*x-((3/2)*x^2)-8 = 0
(-3/2)*x^2+(1/2)*x-8 = 0
1/2*x-3/2*x^2-8 = 0
DELTA = (1/2)^2-(-8*(-3/2)*4)
DELTA = -191/4
DELTA < 0
x belongs to the empty set
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