(x+1)-(x-1)=....... How to solve it

[匿名]

2007-02-20 7:53 am

(x+1)-(x-1)=............

Detail explaination pls..........

回答 (4)

用戶11276

2007-02-20 7:55 am

✔ 最佳答案

(x+1)-(x-1)
=x+1-x+1
=2

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cherry

2007-02-20 8:02 am

(x+1)-(x-1)
=x+1-x+1
=2
要小心d後面既係x+1，唔好因為一唔小心，有好多人會唔記得要負負得正!
要多加留意，避免出錯~

參考: 自己

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shadow

2007-02-20 7:57 am

(x+1)-(x-1)
=x+1-x+1
= 2

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orange

2007-02-20 7:56 am

(x+1)-(x-1)
= x +1 - x +1
=2
....

參考: 因為負負得正

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