Ответ:
\[3a^{4}b^{2} + 24ab^{5} =\]
\[= 3ab^{2}\left( a^{3} + 8b^{3} \right) =\]
\[= 3ab^{2}(a + 2b)\left( a^{2} + 2ab + 4b^{2} \right).\]
\[3a^{4}b^{2} + 24ab^{5} =\]
\[= 3ab^{2}\left( a^{3} + 8b^{3} \right) =\]
\[= 3ab^{2}(a + 2b)\left( a^{2} + 2ab + 4b^{2} \right).\]