(2a+b)(2a-b)-4a+1
please factorize it with clear steps
F.3 maths factorization
2010-08-30 5:06 am
回答 (2)
2010-08-30 5:16 am
✔ 最佳答案
(2a+b)(2a-b)-4a+1=(2a)^2-b^2-4a+1
=(4a^2-4a+1)-b^2
=(2a-1)^2-b^2
=(2a-1-b)(2a-1+b)
2010-08-30 7:46 pm
(2a+b)(2a-b)-4a+1
=4a^2-b^2-4a+1
=(2a-1)^2-b^2
=(2a-1-b)(2a-1+b)
=4a^2-b^2-4a+1
=(2a-1)^2-b^2
=(2a-1-b)(2a-1+b)
收錄日期: 2021-04-22 00:50:18
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100829000051KK01396