ГДЗ по алгебре 7 класс Мерзляк Задание 1146

\[\boxed{\text{1146\ (1146).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]

\[1)\ 4a \cdot ( - 3ab) = - 12a^{2}b\]

\[2) - 2m^{2} \cdot 0,1m^{4}n \cdot \left( - 5n^{3} \right) =\]

\[= m^{6}n^{4}\]

\[3)\ 0,3a^{2}b^{4} \cdot 1,2a^{4}b = 0,36a^{6}b^{5}\]

\[4) - 6x^{3}y^{6} \cdot 1,5xy = - 9x^{4}y^{7}\]

\[5) - 14b^{2}c^{8}d^{9} \cdot 1\frac{2}{7}b^{6}d^{3} =\]

\[= - 14 \cdot \frac{9}{7}b^{8}c^{8}d^{12} =\]

\[= - 18b^{8}c^{8}d^{12}\]

\[6)\frac{4}{9}a^{4}c \cdot \left( - 12a^{2}c^{3} \right) \cdot 1,8a^{4}b^{5} =\]

\[= - \frac{4}{9} \cdot 12 \cdot \frac{9}{5}a^{10}b^{5}c^{4} =\]

\[= - 9,6a^{10}b^{5}c^{4}\]

\[7)\ 3x^{6} \cdot \left( - 4x^{2}y \right)^{2} =\]

\[= 3x^{6} \cdot 16x^{4}y^{2} = 48x^{10}y^{2}\]

\[8)\ ( - xy)^{3} \cdot \left( - 2x^{2}y^{2} \right)^{4} =\]

\[= - x^{3}y^{3} \cdot 16x^{8}y^{8} =\]

\[= - 16x^{11}y^{11}\]