2. Упростите выражения: а) 3 ⋅ x ⋅ 12; б) 80 ⋅ 4 ⋅ t; в) m ⋅ 6 ⋅ 22.

Перемножим числовые множители:

а) 3 ⋅ x ⋅ 12 = 3 ⋅ 12 ⋅ x = 36x.

б) 80 ⋅ 4 ⋅ t = 320t.

в) m ⋅ 6 ⋅ 22 = 6 ⋅ 22 ⋅ m = 132m.

Ответ: а) 36x; б) 320t; в) 132m.