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x in (-oo:+oo)
(32/4)*x^2+32*x+4*x+4 = 0
8*x^2+36*x+4 = 0
DELTA = 36^2-(4*4*8)
DELTA = 1168
DELTA > 0
x = (1168^(1/2)-36)/(2*8) or x = (-1168^(1/2)-36)/(2*8)
x = (4*73^(1/2)-36)/16 or x = (-4*73^(1/2)-36)/16
x in { (-4*73^(1/2)-36)/16, (4*73^(1/2)-36)/16 }
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