а) a(x-2)-b(x-2)+c(x-2) = a(x-2)-b(x-2)-c(x-2)= (x-2)*(a-b-c)
б) 2a(x-y)+2b(y-x)-c(x-y)= 2a(x-y)-2b(x-y)-c(x-y) = (x-y)*(2a-2b-c)
а) a(x-2)-b(x-2)+c(x-2) = a(x-2)-b(x-2)-c(x-2)= (x-2)*(a-b-c)
б) 2a(x-y)+2b(y-x)-c(x-y)= 2a(x-y)-2b(x-y)-c(x-y) = (x-y)*(2a-2b-c)