1 1
___________(除號) -(減) ___________
ab-b*2 a*2-ab
(*2)means二次方
更新1:
Simplify: 1/ab-b(*2) - 1/a(*2)-ab (*2)means二次方
中學數學題(easy)
回答 (2)
2009-01-10 9:14 pm
✔ 最佳答案
The answer is as follows:圖片參考：http://i320.photobucket.com/albums/nn347/old-master/090110_mat_1.jpg?t=1231564440
2009-01-10 8:19 pm
1/ab-b(*2) - 1/a(*2)-ab
= (a*2-ab)-(ab-b*2)/(ab-b*2)(a*2-ab)
= a*2-2ab+b*2/a*3-2a*2b*2-ab*3
= (a-b)*2/-ab(a*2+2ab+b*2)
= (a-b)*2/-ab(b-a)*2
= (a*2-ab)-(ab-b*2)/(ab-b*2)(a*2-ab)
= a*2-2ab+b*2/a*3-2a*2b*2-ab*3
= (a-b)*2/-ab(a*2+2ab+b*2)
= (a-b)*2/-ab(b-a)*2
收錄日期: 2021-04-29 18:14:44
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