maths 問題
回答 (2)
2007-08-15 8:57 am
✔ 最佳答案
1. (-4x/3 + 2)(-4x/3 - 2) = (-4x/3)^2 - 4
= 16x^2/9 - 4
用(a+b)(a-b) = a^2 - b^2
2007-08-15 9:12 am
(-4x/3 + 2)(-4x/3 - 2)
=16x*/9-4
如果你想個答案靚d可以答= 4(4x*-9)
p.s *=2
=16x*/9-4
如果你想個答案靚d可以答= 4(4x*-9)
p.s *=2
收錄日期: 2021-05-03 21:54:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070815000051KK00277