|x^2 - 4х| - 3х <0
х^2 - 4х - 3х <0 ; х^2 - 4х ≥0
-(х^2 - 4х) - 3х <0 ; х^2 - 4х < 0
х € ( 1, 7 )
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|x^2 - 4х| - 3х <0
х^2 - 4х - 3х <0 ; х^2 - 4х ≥0
-(х^2 - 4х) - 3х <0 ; х^2 - 4х < 0
х € ( 1, 7 )