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
數學唔識.........唔知用咩方式計
2010-01-31 6:43 pm
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：
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原文連結 [永久失效]:
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