化简:3a×4b-2a×4b/2-3a×b/2
问题描述:
化简:3a×4b-2a×4b/2-3a×b/2
答
3a×4b-2a×4b/2-3a×b/2
=12ab+4ab-1.5ab
=16ab-1.5ab
=14.5ab