Решить неравенства методом интервалов.

1)  (3х-4) (1-х) (2х+1) > 0

2)  (2х - 5) (7х + 3) (х + 8) < 0

3)  (5х - 6) (6х - 5) (1-х) (3х +1)  > 0

4) (10х - 1) (х + 2) (7х - 4) (7х+5)  < 0

 

 

 

 

 

 

 

 

 

 

 

 

 

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