467. a) 4x · 7y; B) 4/9ab³ · 3/2ab; 6) -8x · 5x³; г) х²у⁵ · (-6xy²); д) -0,6a²b · (-10a e) -1/5m³n⁴ · 5m²n³

Ответ: смотри решение

1. 4x \(\cdot\) 7y = 4 \(\cdot\) 7 \(\cdot\) x \(\cdot\) y = 28xy
2. \(\frac{4}{9}\)ab³ \(\cdot\) \(\frac{3}{2}\)ab = \(\frac{4}{9}\) \(\cdot\) \(\frac{3}{2}\) \(\cdot\) a \(\cdot\) a \(\cdot\) b³ \(\cdot\) b = \(\frac{2}{3}\)a²b⁴
3. -8x \(\cdot\) 5x³ = -8 \(\cdot\) 5 \(\cdot\) x \(\cdot\) x³ = -40x⁴
4. x²y⁵ \(\cdot\) (-6xy²) = -6 \(\cdot\) x² \(\cdot\) x \(\cdot\) y⁵ \(\cdot\) y² = -6x³y⁷
5. -0,6a²b \(\cdot\) (-10a³) = -0,6 \(\cdot\) (-10) \(\cdot\) a² \(\cdot\) a³ \(\cdot\) b = 6a⁵b
6. -\(\frac{1}{5}\)m³n⁴ \(\cdot\) 5m²n³ = -\(\frac{1}{5}\) \(\cdot\) 5 \(\cdot\) m³ \(\cdot\) m² \(\cdot\) n⁴ \(\cdot\) n³ = -m⁵n⁷

Ответ: смотри решение