Anyone explain to me this video? I was watching a
video
in time 24:48
I would like to know where you got the value 

.9 (1.14z + .941) and 1.0232 + .757

Does anyone explain how he got those numbers?
Two conjugate poles:

$(z-(0.51+0.7i))(z-(0.51-0.7i)) = z^{2} - 1.02z +0.76$

Two conjugate zeros:

$(z-(0.57+0.78i))(z-(0.57-0.78i)) = z^{2} - 1.14z +0.94$