5條MATHS (中2程度) 十萬火急 !!!

2006-11-07 4:09 am
- 1/2x - 1/3xy =?

- 4m-5/8m square + -4/12m =?

- 1/a + 3/ 20ab =?

- 2/3x + 1/6xy =?

- 3/b - b-3/2b square =?

** Square = 二次方

回答 (2)

2006-11-07 4:53 am
- 1/2x - 1/3xy = 1/6y

- 4m-5/8m square + -4/12m = don't know...

- 1/a + 3/ 20ab = ....

- 2/3x + 1/6xy = x(5/6y)

- 3/b - b-3/2b square = .....

我得中一, 所以好多唔識, 同埋我唔肯定...
2006-11-07 4:15 am
你上e個網有得比你問:http://www.mathdb.org/


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