РЕШИТЕ НЕРАВЕНСТВО а) (х-5)(4х+1)(х+1)>0 б) (3-х)(4х+1)(3х-3)>0

Question

РЕШИТЕ НЕРАВЕНСТВО
а) (х-5)(4х+1)(х+1)>0
б) (3-х)(4х+1)(3х-3)>0

Answer 1

(x-5)(4x+1)(x+1)>0
------[-1]---------[-1/4]--------[5]-----------
_-_______+________-_______+


(3-x)(4x+1)(3x-3)>0
------[-1/4]-----[1]-------[3]------
__+______-_____+_____-