9. Вычисли: a) (6³+12²): 15;

а) (6³ + 12²) ∶ 15 = (6 ⋅ 6 ⋅ 6 + 12 ⋅ 12) ∶ 15 = (216 + 144) ∶ 15 = 360 ∶ 15 = 24

 360|15
-30  24
--
 60
-60
--
 0

Ответ: 24