\[(p + 3)(p - 11) + (p + 6)^{2} =\]
\[= p^{2} - 11p + 3p - 33 + p^{2} + 2 \cdot 6p + 36 =\]
\[= 2p^{2} - 8p + 3 + 12p =\]
\[= 2p^{2} + 4p + 3.\]