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x in (-oo:+oo)
64 = ((x+12)^2)/3 // - ((x+12)^2)/3
64-(((x+12)^2)/3) = 0
(-1*(x+12)^2)/3+64 = 0
(-1*(x+12)^2)/3+(3*64)/3 = 0
3*64-1*(x+12)^2 = 0
48-x^2-24*x = 0
48-x^2-24*x = 0
48-x^2-24*x = 0
DELTA = (-24)^2-(-1*4*48)
DELTA = 768
DELTA > 0
x = (768^(1/2)+24)/(-1*2) or x = (24-768^(1/2))/(-1*2)
x = (16*3^(1/2)+24)/(-2) or x = (24-16*3^(1/2))/(-2)
(x-((16*3^(1/2)+24)/(-2)))*(x-((24-16*3^(1/2))/(-2))) = 0
((x-((16*3^(1/2)+24)/(-2)))*(x-((24-16*3^(1/2))/(-2))))/3 = 0
((x-((16*3^(1/2)+24)/(-2)))*(x-((24-16*3^(1/2))/(-2))))/3 = 0 // * 3
(x-((16*3^(1/2)+24)/(-2)))*(x-((24-16*3^(1/2))/(-2))) = 0
( x-((16*3^(1/2)+24)/(-2)) )
x-((16*3^(1/2)+24)/(-2)) = 0 // + (16*3^(1/2)+24)/(-2)
x = (16*3^(1/2)+24)/(-2)
( x-((24-16*3^(1/2))/(-2)) )
x-((24-16*3^(1/2))/(-2)) = 0 // + (24-16*3^(1/2))/(-2)
x = (24-16*3^(1/2))/(-2)
x in { (16*3^(1/2)+24)/(-2), (24-16*3^(1/2))/(-2) }
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