Question

Срочно! 35 баллов. 7 класс

Answer 1

Объяснение:

$2.1a {}^{2} b {}^{2} c {}^{4} \times ( - 1 \frac{3}{7} ) \times (bc {}^{3} d) =2.1a^{2}b^{3}c^{4}\left(-\frac{1\times 7+3}{7}\right)c^{3}d =2.1a^{2}b^{3}c^{7}\left(-\frac{1\times 7+3}{7}\right)d =2.1a^{2}b^{3}c^{7}\left(-\frac{7+3}{7}\right)d =2.1a^{2}b^{3}c^{7}\left(-\frac{10}{7}\right)d =-3a^{2}b^{3}c^{7}d$