$$\left. \begin{array} { l } { ( 2 y + 3 ) ^ { 2 } } \\ { ( 2 y + 3 ) ^ { 2 } } \\ { 4 y ^ { 2 } + 6 } \\ { 4 y ^ { 2 } + 12 y + 9 } \end{array} \right.$$
$2\left(2y+3\right)^{2}\left(2y^{2}+3\right)$
$\left(2y+3\right)^{2},\ \left(2y+3\right)^{2},\ 4y^{2}+6,\ \left(2y+3\right)^{2}$
