更新1:
u^4 + 2(u^2) (v^2) + v^4 - (u^2)(v^2) I don't understand!!!!
Factorize following expression
回答 (1)
2009-11-10 12:29 am
✔ 最佳答案
u^4 + u^2 x v^2 + v^4 = u^4 + 2(u^2) (v^2) + v^4 - (u^2)(v^2)
= (u^2 + v^2)^2 - (uv)^2
= (u^2 + v^2 + uv)(u^2 + v^2 - uv)
2009-11-09 17:09:46 補充：
u^4 + u^2 x v^2 + v^4
= u^4 + (u^2) (v^2) + v^4 + (u^2)(v^2) - (u^2)(v^2)
= u^4 + (u^2)(v^2) + (u^2)(v^2) + v^4 - (u^2)(v^2)
= u^4 + 2(u^2) (v^2) + v^4 - (u^2)(v^2)
that means + (u^2)(v^2) first and - (u^2)(v^2) the value have no change.
收錄日期: 2021-04-21 22:04:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091109000051KK00795