Помогите решит 3 примера
nx + ny + 10x + 10y = (nx + ny) + (10x + 10y) = n(x + y) + 10(x + y) = (x + y)(n + 10)
9x + 9y + ax + ay = 9(x + y) + a(x + y) = (x + y)(9 + a)