計算
(a)4b+3+3b-7+2=?
(b)21x-12y-18x-7y-3z=?
(c)-7a+2b-4+2a-3b-4=?
(d)4u+2v-8t-3u-8v=?
(1) (4a) (-5b)=?
(2) (-7x)(-12y)=?
(3) (3x)(-7y)(-9z)=?
(4) (-m)(-n)(-p)(-g)=?
(5) 4(a+2)=?
代數20分！！
2007-09-02 2:42 am
回答 (4)
2007-09-02 2:47 am
✔ 最佳答案
(a)4b+3+3b-7+2=7b-2(b)21x-12y-18x-7y-3z=3x-19y-3z
(c)-7a+2b-4+2a-3b-4=-5a-b-8
(d)4u+2v-8t-3u-8v=u-6v-3u
(1) (4a) (-5b)=-20ab
(2) (-7x)(-12y)=84xy
(3) (3x)(-7y)(-9z)=189xyz
(4) (-m)(-n)(-p)(-g)=mnpg
(5) 4(a+2)=4a+8
2007-09-02 3:55 am
(a) 7b-2
(b) 3x-19y-3z
(c) -5a-b-8
(d) u-6v-3u
(1) -20ab
(2) 84xy
(3) 189xyz
(4) mnpg
(5) 4a+8
(b) 3x-19y-3z
(c) -5a-b-8
(d) u-6v-3u
(1) -20ab
(2) 84xy
(3) 189xyz
(4) mnpg
(5) 4a+8
2007-09-02 3:33 am
(a)7b-2
(b)3X-19Y-3Z
(c)-5a-b-8
(d)u-6v-8t
(1)-20ab
(2)84XY
(3)189XYZ
(4)mnpg
(5)4a+8
(b)3X-19Y-3Z
(c)-5a-b-8
(d)u-6v-8t
(1)-20ab
(2)84XY
(3)189XYZ
(4)mnpg
(5)4a+8
參考: me
2007-09-02 2:53 am
a) 4b+3b++2-7= 7b-5
b)21x-18x-12y-7y-3z= 3x-5y-3z
c)-7a+2a+2b-3b-4-4= -5b-1b-8
d)4u-3u+2v-8v-8t= 1u-6v-8t
1)-20ab
2)+84xy
3)+189xyz
4)+mnpg
5)+4a+8
b)21x-18x-12y-7y-3z= 3x-5y-3z
c)-7a+2a+2b-3b-4-4= -5b-1b-8
d)4u-3u+2v-8v-8t= 1u-6v-8t
1)-20ab
2)+84xy
3)+189xyz
4)+mnpg
5)+4a+8
收錄日期: 2021-04-23 17:16:34
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070901000051KK03920