Question

(z−1)(z−1) can be written​

Answer 1

Answer:

(z-1)^2

Step-by-step explanation:

I hope this helps you

Answer 2

Answer:

[ Z - 1 ] ^ 2

Step-by-step explanation:

(Z-1)(Z-1) can be written as

( z-1 ) × ( z-1 )

= (z-1)^2