Answer:

Explanation:
Hello.
Please remember that the Distributive Property states that
a(b+c)=ab+ac
Where
a, b, and c can be constants or variables.
In this case, it's flopped over:
(c+b)a=ca+ba
Use the second formula:
(z-6)2=2z-12
And we're done!
I hope it helps & have an outstanding day!
~ST2710 :)