\[\boxed{\mathbf{931\ (931).\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[a > b > 1\]
\[a^{2}b + b^{2} + a > ab^{2} + a^{2} + b\]
\[a^{2}b + b^{2} + a - ab^{2} - a^{2} -\]
\[- b > 0\]
\[\text{ab}(a - b) + (a - b) +\]
\[+ \left( b^{2} - a^{2} \right) > 0\]
\[\text{ab}(a - b) + (a - b) +\]
\[+ (b - a)(b + a) > 0\]
\[(a - b)(ab + 1 - b - a) > 0\]
\[(a - b)\left( b(a - 1) - (a - 1) \right) > 0\]
\[(a - b)(a - 1)(b - 1) > 0 \Longrightarrow\]
\[\Longrightarrow верно.\]