\[(2p - 3)(2p + 3) + (p - 2)^{2} =\]
\[= (2p)^{2} - 3^{2} + p^{2} - 4p + 4 =\]
\[= 4p^{2} - 9 + p^{2} - 4p + 4 =\]
\[= 5p^{2} - 4p - 5.\]