凈係有幾6條唔識Do (20點)

2009-08-15 7:32 pm
1. 化簡下列各代數式

1. c^2 x 3c^2 2. 8a^4 ÷ 4a^2

3. (2pq^2)^3 4. (-x^2 x x)x(-x)^2

5. (2p^2q)^3 x 3pq^3 6. 3^3a+5/3^2a-1


列埋式,讓我明白,thx =]

回答 (1)

2009-08-15 8:01 pm
✔ 最佳答案
As follows:

圖片參考:http://a.imagehost.org/0038/ScreenHunter_01_Aug_15_11_57.gif


2009-08-15 12:06:08 補充:
第4題:
http://a.imagehost.org/0388/ScreenHunter_02_Aug_15_12_04


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