Завдання:
Спрости вираз:
1) 6 ⋅ 7 ⋅ b;
2) 8 ⋅ 9а;
3) 3 ⋅ a ⋅ 4 ⋅ b;
4) 5x ⋅ 7у;
5) 3 ⋅ m ⋅ 2а ⋅ 7 ⋅ t;
6) 2а ⋅ 3z ⋅ 4n.
Розв'язок:
1) 6 ⋅ 7 ⋅ b = 42b
2) 8 ⋅ 9а = 72a
3) 3 ⋅ a ⋅ 4 ⋅ b = 12ab
4) 5x ⋅ 7у = 35xy
5) 3 ⋅ m ⋅ 2а ⋅ 7 ⋅ t = 42mat
6) 2а ⋅ 3z ⋅ 4n = 24azn