數學唔識.........唔知用咩方式計

2010-01-31 6:43 pm
因式分解下列各數:

8m^3 - 125

4a^2(y - 2)^2 - a^2

9a^2 - 4b^2 - 9a - 6b

(a^2 + b^2) - 4a^2b^2

(x^2 - x)^2 - 4(x^2 - x) - 12

回答 (1)

2010-01-31 7:13 pm
✔ 最佳答案
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2010-01-31 11:13:37 補充:
http://img525.imageshack.us/img525/7731/91017511.png


收錄日期: 2021-04-23 23:20:36
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