simplify the following expressions
1:a既二次方xa既四次方x5
2:(-2mn)既三次方x4m既二次方n
3:2b既二次方x(3b)既三次方
收錄日期: 2021-04-13 16:11:00
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https://hk.answers.yahoo.com/question/index?qid=20061102000051KK02130