急~5x-6y+4x+12y+3=?&step
回答 (4)
2012-10-30 6:37 am
✔ 最佳答案
1. 5x-6y+4x+12y+3=5x+4x+12y-6y+3
=9x+6y+3
2. u．u．u．- 4xn
= - 4xnu^3
3. 3．t．t．g．9．g
=3．9．t．t．g
=27t^2g
*Hope it can help you la!*
參考: My heart
2012-10-30 6:18 am
5x-6y+4x+12y+3
=5x+4x+12y-6y+3
=9x+6y+3
=3(3x+2y+1)
u。u。u。-4xn
=u^3。-4xn
=-4xnu^3
(P.S:u^3=3次方)
3。t。t。g。9。g
=(3X9)(tXt)(gXg)
=27(t^2)(g^2)
=3tg(9tg)
=5x+4x+12y-6y+3
=9x+6y+3
=3(3x+2y+1)
u。u。u。-4xn
=u^3。-4xn
=-4xnu^3
(P.S:u^3=3次方)
3。t。t。g。9。g
=(3X9)(tXt)(gXg)
=27(t^2)(g^2)
=3tg(9tg)
參考: Done by me
2012-10-30 6:10 am
5x-6y+4x+12y+3
= 9x+6y+3
=3(3x+2y+1)
= 9x+6y+3
=3(3x+2y+1)
收錄日期: 2021-04-13 19:04:52
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20121029000051KK00692