化簡
1.-5x+14+8x+3
2.3a-10-5a+7
3.-9x-3y+4y+8y
4.11x-y+8-3y
有數學唔識做？？
2007-10-29 2:27 am
回答 (2)
2007-10-29 2:36 am
1.3x+17
2.-(2a+3)
3.9(y-x)
4.11x-4(y-2)
2.-(2a+3)
3.9(y-x)
4.11x-4(y-2)
2007-10-29 2:33 am
1. 8x-5x +14+3
= 3x+17
2. 3a-5a-10+7
=-2a-3
=-(2a+3)
3. -9x+8x+4y-3y
= -x+y
4. 11x-y-3y+8
=11x-4y+8
2007-10-28 19:19:25 補充：
3. .-9x-3y 4y 8y= -9x-3y 12y=-9x 9y
= 3x+17
2. 3a-5a-10+7
=-2a-3
=-(2a+3)
3. -9x+8x+4y-3y
= -x+y
4. 11x-y-3y+8
=11x-4y+8
2007-10-28 19:19:25 補充：
3. .-9x-3y 4y 8y= -9x-3y 12y=-9x 9y
參考: myself
收錄日期: 2021-04-28 15:02:33
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071028000051KK03863