A) (3;9) и 3 < x < 9
Б) [-1,2;-1) и -1,2 ≤ x < -1
В) x<5 и (-∞;5)
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A) (3;9) и 3 < x < 9
Б) [-1,2;-1) и -1,2 ≤ x < -1
В) x<5 и (-∞;5)