( - p^2/4 + 2q^3 + r) ^2
using the identity ( a-b)^2 =a^2 - 2ab +b^2
F.2 EXPAND
2007-11-05 11:11 pm
回答 (1)
2007-11-09 1:23 am
✔ 最佳答案
(-p²/4+2q³+r)²=(2q³+r-p²/4)²
=(2q³+r-(p/2)²)²
=[(2q³+r)-(p/2)²]²
=[(2q³+r)²-2(2q³+r)(p/2)²+((p/2)²)²]
=(2q^6+r²)-p²(2q³+r)/4+p²/4
........
參考: choose me la ,bnt i dont know it is right or wrong wor
收錄日期: 2021-04-18 23:43:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071105000051KK07201