６ａ－（５ａ－４ｂ）＋（３ａ－２ｂ）－ｂ

2006-10-21 4:17 am

唔色做呀！！急用！！快！！！

回答 (8)

2006-10-21 4:22 am

✔ 最佳答案

６ａ－（５ａ－４ｂ）＋（３ａ－２ｂ）－ｂ
6a-5a+4b+3a-2b-b
=4a+b

不知道對不對~

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2006-10-24 2:05 am

6a-(5a-4b)+(3a-2b)-b
=6a-5a+4b+3a-2b-b
=4a+b

參考: Hope can help u!

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2006-10-21 6:27 am

６ａ－（５ａ－４ｂ）＋（３ａ－２ｂ）－ｂ
=6a-1(5a-4b)+1(3a-2b)-b
=6a-5a+4a+3a-2b-b
=a+4a+3a-3b
8a-3b

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2006-10-21 4:33 am

６ａ－（５ａ－４ｂ）＋（３ａ－２ｂ）－ｂ
＝６ａ－５ａ＋４ｂ＋３ａ－２ｂ－ｂ
＝１ａ＋４ｂ＋３ａ－２ｂ－ｂ
＝１ａ＋３ａ＋４ｂ－２ｂ－ｂ
＝４ａ＋（４ｂ－２ｂ－ｂ）
＝４ａ＋１ｂ

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2006-10-21 4:28 am

6 a - ( 5 a- 4 b ) + ( 3 a - 2 b ) - b
= 6 a - f + f - b
= 5 b + f - b
= 6a - b
= 5f [ 95 ]

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2006-10-21 4:24 am

６ａ－（５ａ－４ｂ）＋（３ａ－２ｂ）－ｂ
=６ａ－５ａ－４ｂ＋３ａ－２ｂ+ｂ
=4a－5b

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2006-10-21 4:22 am

6A-5A+4B+3A-2B-B
=4A+B

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2006-10-21 4:20 am

= 6a - 5b + 4b + 3a - 2b - b (負負得正, 負正或正負得負)
= 9a - 4b

參考: me

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