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p in (-oo:+oo)
p*((2*p^6+8*p^5+8*p^4)/8) = 0
(p*(2*p^6+8*p^5+8*p^4))/8 = 0
2*p^6+8*p^5+8*p^4 = 0
2*p^4*(p^2+4*p+4) = 0
p^2+4*p+4 = 0
DELTA = 4^2-(1*4*4)
DELTA = 0
p = -4/(1*2)
p = -2 or p = -2
2*p^4*(p+2)^2 = 0
(2*p*p^4*(p+2)^2)/8 = 0
( 2*p^4 )
2*p^4 = 0 // : 2
p^4 = 0
p = 0
( p+2 )
p+2 = 0 // - 2
p = -2
( p )
p = 0
p in { 0, -2, -2, 0 }
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