Answer:
8a^2 + 6ats - 2t^2s^2
Explanation:
(4a-ts)(2a+2ts)
4a(2a+2ts) -ts(2a+2ts)
8a^2 + 8ats - 2ts - 2t^2s^2
= 8a^2 + 6ats - 2t^2s^2
9.4m questions
12.1m answers