Respuesta :

I am going to use x instead of z.

2x to the second power is 4x

-3 to the second power is 9

the answer would be 4x+9

You are unable to simplify more because they are not life terms.

Hope this helps!. Have a great day.

Answer:

4x^2 - 12x + 9

Step-by-step explanation:

(2x - 3) (2x- 3)  Use FOIL method--FIRST OUTER INNER LAST

4x^2 - 6x -6x + 9

4x^2 - 12x + 9