Question

-2/3ab³*6b⁷
если a = 0, 5 b = - 1​

Answer 1

$- \frac{2}{3} ab^{3} \times 6b^{7} = \\ \\ - 4ab ^{10} = - 4 \times 0.5 \times ( - 1) ^{10} = \\ \\ - 4 \times 0.5 \times 1 = - 2.$

Ответ: - 2.