1) u^2 -16v^2-4u+4
2) 2y^3+1/4
P.S 唔該寫一寫埋個step比我 唔該哂!^^
2題因式分解唔識
2007-09-20 2:50 am
回答 (1)
2007-09-20 3:41 am
✔ 最佳答案
1) u^2 -4u+4-16v^2=(u-2)^ - 16v^2
=(u-2+4v)(u-2-4v)
=(u+4v-2)(u-4v-2)
2) 2(y^3+1/8)
=2(y+1/2)(y^2-y/2+1/4)
收錄日期: 2021-04-30 20:43:28
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070919000051KK02616