Help!! Factorization

2006-12-10 10:57 pm

Plz!!!
Help me to answer this question:

Factorize: (4a+2)all to square - (2a-1) all to square
** All to square 即二次方,,,
5該!!

回答 (1)

2006-12-10 11:03 pm

✔ 最佳答案

(4a+2)^2-(2a-1)^2

= ((4a+2)+(2a-1))((4a+2)-(2a-1)) Because a^2-b^2 = (a-b)(a+b)
= (6a+1)(2a+3)

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