\[\boxed{\text{666\ (666).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[\textbf{а)}\ x^{3} - 3x^{2} + x =\]
\[= x(x^{2} - 3x + 1)\]
\[\textbf{б)}\ m^{2} - 2m^{3} - m^{4} =\]
\[= m^{2}(1 - 2m - m^{2})\]
\[\textbf{в)}\ 4a^{5} - 2a^{3} + a =\]
\[= a(4a^{4} - 2a^{2} + 1)\]
\[\textbf{г)}\ 6x^{2} - 4x^{3} + 10x^{4} =\]
\[= 2x^{2}(3 - 2x + 5x^{2})\]
\[\textbf{д)}\ 15a^{3} - 9a^{2} + 6a =\]
\[= 3a(5a^{2} - 3a + 2)\]
\[\textbf{е)} - 3m^{2} - 6m^{3} + 12m^{5} =\]
\[= - 3m^{2}(1 + 2m - 4m^{3})\ \]