7 of 77 of 7 Items Question Simplify (2z – 3)2. (1 point) Responses 4z2 – 9 4 z 2 – 9 4z2 – 9z 4 z 2 – 9 z 4z2 – 12z – 9 4 z 2 – 12 z – 9 4z2 – 12z + 9 4 z 2 – 12 z + 9 Skip to navigation
To simplify (2z - 3)2, you need to square each term inside the parentheses:
(2z - 3)2 = (2z - 3)(2z - 3)
= 2z(2z) - 3(2z) - 3(2z) + 3(3)
= 4z^2 - 6z - 6z + 9
= 4z^2 - 12z + 9
Therefore, the simplified expression is 4z^2 - 12z + 9.