1) 7 • (a + 2) = 7a + 14;
2) (3 – b) • 5 = 15 - 5b;
3) 3 • (4x – 2y) = 12x - 6y;
4) (5p + 2m) • 4 = 20p + 8m.
Завдання №336
Розкрий дужки:
1) 7 • (a + 2) = 7a + 14;
2) (3 – b) • 5 = 15 - 5b;
3) 3 • (4x – 2y) = 12x - 6y;
4) (5p + 2m) • 4 = 20p + 8m.