\[\boxed{\text{580\ (580).\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[1){\ \left( 10a^{2} - 7ab^{2} \right)}^{2} =\]
\[= \left( 10a^{2} \right)^{2} - 2 \cdot 10a^{2} \cdot 7ab^{2} =\]
\[= 100a^{4} - 140a^{3}b^{2} + 49a^{2}b^{4}\]
\[2)\ \left( 0,8b^{3} + 0,2b^{2}c^{4} \right)^{2} =\]
\[= 0,64b^{6} + 0,32b^{5}c^{4} + 0,04b^{4}c^{8}\]
\[3)\ \left( 30m^{3}n + 0,04n^{2} \right)^{2} =\]
\[4)\ \left( 0,5x^{4}y^{5} - 20y^{6} \right)^{2} =\]
\[= 0,25x^{8}y^{10} - 20x^{4}y^{11} + 400y^{12}\]
\[5)\ \left( 1\frac{1}{3}a^{2}b + 2\frac{1}{4}ab^{2} \right)^{2} =\]
\[= \left( \frac{4}{3}a^{2}b + \frac{9}{4}ab^{2} \right)^{2} =\]
\[= \frac{16}{9}a^{4}b^{2} + 6a^{3}b^{3} + \frac{81}{16}a^{2}b^{4} =\]
\[= 1\frac{7}{9}a^{4}b^{2} + 6a^{3}b^{3} + 5\frac{1}{16}a^{2}b^{4}\]
\[6)\ \left( 2\frac{1}{3}x^{3}y^{2} - \frac{9}{14}y^{8}x \right)^{2} =\]
\[= \left( \frac{7}{3}x^{3}y^{2} - \frac{9}{14}y^{8}x \right)^{2} =\]
\[= 225m^{18} + 25m^{12} + \frac{25}{36}m^{6}\]
\[8)\ \left( 3\frac{1}{8}x^{8}y^{10} + \frac{16}{25}x^{2}y^{6} \right)^{2} =\]
\[= \left( \frac{25}{8}x^{8}y^{10} + \frac{16}{25}x^{2}y^{6} \right)^{2} =\]