469. Выполните умножение: а) 3,5 · 3m; б) -6ax⁴ · 0,6x²; в) -8a²b³ · (-8a³b³); г) ab · (-7ab²) · 4a³b; д) 10x³y · (-xy³) · 0,6x²; е) -9ab² · 3a³ · (-4b).

а) 3,5 ⋅ 3m = 3,5 ⋅ 3 ⋅ m = 10,5m

б) −6ax⁴ ⋅ 0,6x² = -6 ⋅ 0,6 ⋅ a ⋅ x⁴ ⋅ x² = -3,6ax⁶

в) −8a²b³ ⋅ (−8a³b³) = -8 ⋅ (-8) ⋅ a² ⋅ a³ ⋅ b³ ⋅ b³ = 64a⁵b⁶

г) ab ⋅ (−7ab²) ⋅ 4a³b = -7 ⋅ 4 ⋅ a ⋅ a ⋅ a³ ⋅ b ⋅ b² ⋅ b = -28a⁵b⁴

д) 10x³y ⋅ (−xy³) ⋅ 0,6x² = 10 ⋅ (−1) ⋅ 0,6 ⋅ x³ ⋅ x ⋅ x² ⋅ y ⋅ y³ = -6x⁶y⁴

е) −9ab² ⋅ 3a³ ⋅ (−4b) = −9 ⋅ 3 ⋅ (−4) ⋅ a ⋅ a³ ⋅ b² ⋅ b = 108a⁴b³

Ответ: а) 10,5m; б) -3,6ax⁶; в) 64a⁵b⁶; г) -28a⁵b⁴; д) -6x⁶y⁴; е) 108a⁴b³