Question

Раскройте скобки:
1. 4*(м-3)
2. (а+b)*9
3. 5*(1+к+n)

Answer 1

1. 4(m - 3) = 4m - 12

2. (a + b) * 9 = 9a + 9b

3. 5(1 + k + n) = 5 + 5k + 5n