Answer:
(i) y(3 - x).
(ii) (3 - x)(1 + y).
Step-by-step explanation:
(i) 3y - xy
= y(3 - x).
(ii) (3 - x) + 3y - xy
= (3 - x) + y(3 - x) (3 - x) is common to both parts, so:
this = (3 - x)(1 + y).