Question

17. Пожалуйста
помогите

Answer 1

Ответ:

$\frac{ac + b}{c}$

1) 1. S = (a + b)(x + y)

P = 2(a + b + x + y)

2. S = a(c + d)

P = 2(a + c + d)

3. S = a(k + l + n)

P = 2(a + k + l + n)