因式分解~5該~2題
5x(x-1)+2(1-x)
x(a-5)-y(5-a)
展開~2題
(x+4)*
(2p+3)*
* =2次
MATHS-MATHS-
2008-08-15 9:27 pm
回答 (1)
2008-08-15 9:37 pm
✔ 最佳答案
5x(x-1)+2(1-x)=5x(x-1)-2(x-1)
=(x-1)(5x-2)
x(a-5)-y(5-a)
=x(a-5)+y(a-5)
=(x-5)(x+y)
(x+4)*
=x*+8x+16
(2p+3)*
=(2p)*+2(3)(2p)+3*
=4p*+12p+9
收錄日期: 2021-04-22 00:37:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080815000051KK01196