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b in (-oo:+oo)
b*(((1/3)*(b+6)^1)/4)+8 = 0
b*(((1/3)*(b+6))/4)+8 = 0
(1/3*b*(b+6))/4+8 = 0
(1/3*b*(b+6))/4+(4*8)/4 = 0
1/3*b*(b+6)+4*8 = 0
1/3*b^2+2*b+32 = 0
1/3*b^2+2*b+32 = 0
1/3*b^2+2*b+32 = 0
DELTA = 2^2-(1/3*4*32)
DELTA = -116/3
DELTA < 0
1 = 0
1/4 = 0
1/4 = 0 // * 4
1 = 0
b belongs to the empty set
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