(1)-4a+9a+5b-3b
(2)6x-7-(4x+5)
(3)(2a)x(-3a)
(4)(-6x)＊(2)
(5) (3p)x(-4p)
(6)(15a-4a)x2a
(7)7x-6-2(3x-1)
化簡!THX
2008-08-28 6:39 pm
回答 (3)
2008-08-28 7:21 pm
✔ 最佳答案
(1)-4a+9a+5b-3b =5a+2b
(2)6x-7-(4x+5)
=6x-7-4x-5
=2x-12
(3)(2a)x(-3a)
=-6a2
(4)(-6x)＊(2)
=-12x
(5) (3p)x(-4p)
=-12p2
(6)(15a-4a)x2a
=11a x 2a
=22a2
(7)7x-6-2(3x-1)
=7x-6-6x+2
=x-4
參考: me ^v^
2008-08-28 6:59 pm
(3)=-6a2次方
收錄日期: 2021-04-13 16:01:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080828000051KK00751