i think i have to simplify.... but the question just says:

(2y-3)^2
a.4y^2+9
b.4y^2-6y+9
c.4y^2-12y+9
d.4y^2+12y+9

i got A but i wanna make sure....

yes... A. is the correct answer.

Just expand the binomial.

You know how to do it?
First term is (2y)^2 = 4y^2.
Second term is twice the product inside the parentheses which is 2y*-3 = -6y and twice that is -12y.
The third term is the last number squared which is -32 or +9. Do you see any answers that fit that? I do. If you will learn the method I showed you, you can do these things in your head.

A point of clarification: A is not the correct answer.

To simplify the expression (2y - 3)^2, you need to expand it using the formula for squaring a binomial. The formula states that (a - b)^2 = a^2 - 2ab + b^2. In this case, a = 2y and b = 3.

Using the formula, we can substitute a = 2y and b = 3 into the formula:
(2y - 3)^2 = (2y)^2 - 2(2y)(3) + (3)^2

Simplifying further:
= 4y^2 - 12y + 9

Therefore, the correct answer is c. 4y^2 - 12y + 9.