5.) выполни вычисление a)3· 4²;б)(3· 8)²

а) 3 ⋅ 4²

1. 4² = 4 ⋅ 4 = 16
2. 3 ⋅ 16 = 48

б) (3 ⋅ 8)²

1. 3 ⋅ 8 = 24
2. 24² = 24 ⋅ 24 = 576

Ответ: а) 48; б) 576