数学解答题,要具体的过程,最好写下来,谢谢,急急急 !!

2025-04-24 14:10:15
推荐回答(1个)
回答1:

2bc-3ac+2ab-2(ab-2bc+2ac)
=2bc-3ac+2ab-2ab+4bc-4ac
=6bc-7ac