1. 2(a+b)(p-q)+4(q-p)(x+y)
2. 18(p-q)^3-12(q-p)^2
3. 5y(y+3)^2+(3+y)^2-
4. (x-y)^2(m-n)^3+(y-x)^3(n-m)^4
From 5-9 some is impossible to factorize
5 au+av-bv+bu
6.5x-5y-2ax-2ay
7.4(rs^2-r^2)+st(1-16r)
8. 3b-3bc-c-4ac+12ab+6b^2
9.18m+3n+24m^2-8mp+4mn-6p
Maths Factorize problem 20p
2010-09-06 7:36 am
回答 (2)
2010-09-10 8:05 am
✔ 最佳答案
1. 2(a+b)(p-q)+4(q-p)(x+y)= 2(a+b)(p-q) - 4(p-q)(x+y)
= 2(p-q)[(a+b) - 2(x+y)]
= 2(p-q)(a+b - 2x-2y)
4. (x-y)^2(m-n)^3+(y-x)^3(n-m)^4
= (x-y)^2(m-n)^3 - (x-y)^3(m-n)^4
= (x-y)^2(m-n)^3[1 - (x-y)(m-n)]
樓上好似搞錯左呢兩條....第2,3題都冇問題
加油呀:D
參考: me+樓上
2010-09-06 8:21 am
圖片參考：http://img823.imageshack.us/img823/4599/screenhunter01sep060020.gif
http://img823.imageshack.us/img823/4599/screenhunter01sep060020.gif
2010-09-11 23:40:13 補充：
抱歉第一題錯了~~!
收錄日期: 2021-04-19 23:10:26
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100905000051KK01879