數學公式因式分解

2008-07-06 1:17 am
簡化這數式,答案以正指數表示
(-a)4 x (-3a-3) x a

回答 (6)

2008-07-06 10:32 am
✔ 最佳答案
(-a)4 x (-3a-3) x a
= -4a x (-3a-3) x a
= -4a^2 x (-3a-3)
= 12a^3 + 12^a2
= 12a(a^2+a)
2008-07-06 6:09 pm
我都覺得佢係想問-3a^-3,因為”答案以正指數表示”,不過要問下事主先知咯.
2008-07-06 2:26 am
(-a)^4 x (-3a^-3) x a

= a^4 x (-3) x a^-3 x a

= (-3) x a^(4 - 3 + 1)

= -3a^2
2008-07-06 2:20 am
(-a)4 x (-3a-3) x a
= (- 4a) x (- 3a^2) - 3a - a^2 (因為相乘,所以-4a可以同-3a^2 group埋成為12a^3)
= 12a^3 - a^2 - 3a //
2008-07-06 2:04 am
(-a)4 x (-3a-3) x a
=-4ax (-3a-3) x a
=(12a^2+12a)x a
=12a^3+12a^2//
參考: 我
2008-07-06 1:40 am
(-a)4 x (-3a-3) x a

= 4a x ( -3a -3) x a
= (-12a^2 -12a) x a
= -12a^3 -12a^2 //
參考: me


收錄日期: 2021-04-24 08:16:17
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080705000051KK01799

檢視 Wayback Machine 備份