\[\boxed{\text{415\ (415).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[\textbf{а)}\ p^{10}\ :p^{6} = p^{10 - 6} = p^{4}\]
\[\textbf{б)}\ a^{8}\ :a^{4} = a^{8 - 4} = a^{4}\]
\[\textbf{в)}\ x^{15}\ :x^{4} = x^{15 - 4} = x^{11}\]
\[\textbf{г)}\ y^{9}\ :y = y^{9 - 1} = y^{8}\ \]
\[\textbf{д)}\ 10^{16}\ :10^{12} = 10^{16 - 12} = 10^{4}\]
\[\textbf{е)}\ {2,3}^{16}\ :{2,3}^{7} = {2,3}^{16 - 7} = {2,3}^{9}\]