Step 1: Write the given expression
[tex](2y-3)^2[/tex][tex](2y-3)^2=(2y-3)(2y-3)[/tex]Step2: Expand the expression
[tex]\begin{gathered} 2y(2y-3)-3(2y-3) \\ =4y^2-6y-6y+9 \\ =4y^2-12y+9 \end{gathered}[/tex]Hence
[tex](2y-3)^2=4y^2-12y+9[/tex]hence the righ