Question

4) (x - 1) - a(1 - x);

помогите​

Answer 1

Ответ:

(x - 1) - a(1 - x)=(x-1)*(1+a)

Answer 2

(x - 1) - a(1 - x) = (x - 1) - a ×(-( x-1)) = (x-1) +a × (x-1) = (x-1) × (1+a)