3題數學題 因式分解 送5分 幫幫手 盡快要有答案
1)t^2-3t-18
2)m^2-16x-12
3)3x^2-16x-12
回答 (4)
✔ 最佳答案
1)
t^2-3t-18
= (t-6)(t+3)
2)
m^2-16x-12
==>抄錯題目
3)
3x^2-16x-12
= (3x-2)(x+6)
2010-12-06 02:25:56 補充:
2)
m^2-12m+27
= (m-3)(m-9)
參考: girl
1
t^2-3t-18
= (t-6)(t+3)
2
m^2-16m-12
=(m-8)^2-76
3
3x^2-16x-12
= (3x+2)(x-6)
1)t^2-3t-18
= (t-6)(t+3)
2)m^2-16x-12
冇解
3)3x^2-16x-12
= (3x+2)(x-6)
收錄日期: 2021-04-16 14:31:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101203000051KK00877
檢視 Wayback Machine 備份