Tìm các cực và không của. H ( Z ) = 2 Z 2 + 0 . 5 Z Z 2 − Z − 0 . 7 5

$\text{Z}{}_{01}=0,\text{Z}{}_{02}=0.25;\text{Z}{}_{\text{p}1}=1.5,\text{Z}{}_{\text{p}2}=-0.5$

$\text{Z}{}_{01}=0,\text{Z}{}_{02}=-0.25;\text{Z}{}_{\text{p}1}=1.5,\text{Z}{}_{\text{p}2}=-0.5$

$\text{Z}{}_{01}=0,\text{Z}{}_{02}=-0.25;\text{Z}{}_{\text{p}1}=-1.5,\text{Z}{}_{\text{p}2}=0.5$

$\text{Z}{}_{01}=0,\text{Z}{}_{02}=0.25;\text{Z}{}_{\text{p}1}=-1.5,\text{Z}{}_{\text{p}2}=0.5$