Ответ:
(x+1)(x²-x+1)-x(x²+4)>=9
х³+1-х³-4х>=9
1-4х>=9
-4х>=8
х=<-2
х∈(-∞ ; - 2]
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Ответ:
(x+1)(x²-x+1)-x(x²+4)>=9
х³+1-х³-4х>=9
1-4х>=9
-4х>=8
х=<-2
х∈(-∞ ; - 2]