Решебник по алгебре 7 класс Мерзляк ФГОС Задание 1147

\[\boxed{\text{1147\ (1147).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]

\[1)\ A = a^{6}b^{9};\ \ \ \ \ n = 3:\ \ \]

\[B^{n} = \left( a^{2}b^{3} \right)^{3}.\]

\[2)\ A = 32a^{10};\ \ \ \ n = 5:\ \]

\(B^{n} = \left( 2a^{2} \right)^{5}\).

\[3)\ A = 81a^{2}b^{4}c^{8};\ \ n = 2:\ \]

\[B^{n} = \left( 9ab^{2}c^{4} \right)^{2}.\]

\[4)\ A = - 8a^{12}b^{18};\ \ n = 3:\ \ \]

\[B^{n} = \left( - 2a^{4}b^{6} \right)^{3}\text{\ .}\]

\[\boxed{\text{1147.\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]

\[12x + 3 - 10x + 15 = 15x - 60\]

\[- 13x = - 78\]

\[x = 6\]

\[Ответ:x = 6.\]

\[9x - 15 - 20x + 8 = 12x + 108\]

\[- 23x = 115\]

\[x = - 5\]

\[Ответ:\ x = - 5.\]