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(x²+3x)(x^4+4)(x²+4x³+4)=0
(x²+3x)=0(x^4+4)=0(x²+4x³+4)=0
x(x+3)=0 brak rozw tego nie wem
oraz taka nierownosc
-2x^4-4x³+6x²≤0
x²(-2x²-4x+6)≤0
x=0 v delta 16+48=64
x₁=1 x₂=-3
wykres od dolu falka z odbiciem w 0
x∈(-∞-3)u(1,∞)