Решите неравенства
1) (х+3)(х-1)(х+4)<0
2) (х-7)(х+8)(х-12)>0
3)(3х+2)(х-5)(4х-1)>0
4)(1-3х)(х+2)(3-х)<0
5)х(5-х)(6-х)<0
6)Х(5х+3)(2-х)(4х-3)(х+5)>0