1. 4x^3+x-3
2. 4x^3-4x^2+12
3. 4x(x^2-x+3)-(x^2-x+3)
4. 4x(x^2-x+3)+(x^2-x+3)
收錄日期: 2021-04-18 15:06:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160617081414AAbAL9e