(x² - 1)(x² - 5x + 6) < 0
(x - 1)(x + 1)(x - 2)(x - 3) < 0
-∞__+_( - 1 )_-_( 1 )_+_( 2 )_-_( 3 )_+__+∞
x ∈ (-1; 1) U (2; 3)
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Answers & Comments
(x² - 1)(x² - 5x + 6) < 0
(x - 1)(x + 1)(x - 2)(x - 3) < 0
-∞__+_( - 1 )_-_( 1 )_+_( 2 )_-_( 3 )_+__+∞
Ответ
x ∈ (-1; 1) U (2; 3)