[-2-2(1-5)]/[-2-3]?

2008-06-19 10:10 am
更新1:

thanks jonathan

回答 (4)

2008-06-19 10:15 am
✔ 最佳答案
[-2-2(-4)]/[-5]

[-2+8]/[-5]

-(6/5)
2008-06-19 9:00 pm
= (- 2 - 2[1 - 5])/(- 2 - 3)
= (- 2 - 2[- 4])/(- 5)
= (- 2 + 8)/(- 5)
= 6/(- 5)
= - 6/5 or - 1 1/5

Answer: - 6/5 or - 1 1/5
2008-06-19 6:03 pm
[ - 2 - 2(1 - 5) ] / [ - 2 - 3 ]
[ - 2 - 2(- 4) ] / [ - 5 ]
[ - 2 + 8 ] / [ - 5 ]
[ 6 ] / [ - 5 ]
- 6 / 5

Well done in using brackets to present such a clear and concise question.
2008-06-19 5:46 pm
[(-2 - 2(1 - 5)]/[-2 - 3]
= [-2 - 2(-4)]/-5
= [-2 + 8]/-5
= 6/-5
= -6/5 (-1.2)


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