(a的平方一3a十2)分之3一(5a一6一a的平方)分之3=?
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解决时间 2021-11-24 20:56
- 提问者网友：niaiwoma
- 2021-11-24 09:42
(a的平方一3a十2)分之3一(5a一6一a的平方)分之3=?
最佳答案
- 五星知识达人网友：琴狂剑也妄
- 2021-11-24 10:52
(a的平方一3a十2)分之3一(5a一6一a的平方)分之3
=3/(a²-3a+2)+3/(a²-5a+6)
=3/[(a-1)(a-2)]+3/[(a-2)(a-3)]
=3(a-3)/[(a-1)(a-2)(a-3)]+3(a-1)/[(a-1)(a-2)(a-3)]
=[(3a-9)+(3a-3)]/[(a-1)(a-2)(a-3)]
=(3a-9+3a-3)/[(a-1)(a-2)(a-3)]
=(6a-12)/[(a-1)(a-2)(a-3)]
=6(a-2)/[(a-1)(a-2)(a-3)]
=6/[(a-1)(a-3)]
=6/(a²-4a+3)
=(a的平方一4a十3)分之6
=3/(a²-3a+2)+3/(a²-5a+6)
=3/[(a-1)(a-2)]+3/[(a-2)(a-3)]
=3(a-3)/[(a-1)(a-2)(a-3)]+3(a-1)/[(a-1)(a-2)(a-3)]
=[(3a-9)+(3a-3)]/[(a-1)(a-2)(a-3)]
=(3a-9+3a-3)/[(a-1)(a-2)(a-3)]
=(6a-12)/[(a-1)(a-2)(a-3)]
=6(a-2)/[(a-1)(a-2)(a-3)]
=6/[(a-1)(a-3)]
=6/(a²-4a+3)
=(a的平方一4a十3)分之6
全部回答
- 1楼网友：夜余生
- 2021-11-24 11:54
3a的三次方一24a＋24
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