F2的因式分解問題

2010-11-24 2:32 am
因式分解 16a^4-1

回答 (3)

2010-11-24 5:11 am
✔ 最佳答案
16a^4 - 1
= (4a^2)^2-1
= (4a^2+1) (4a^2-1)
= (4a^2+1) [(2a)^2-1]
= (4a^2+1) (2a+1) (2a-1)

參考: girl
2010-11-24 2:59 am
16a^4-1
= (4a^2)^2 - (1)^2
= (4a^2 + 1)(4a^2 - 1)
= (4a^2 + 1)(2a+1)(2a-1)

Hope can help you!
參考: myself!
2010-11-24 2:35 am
因式分解 16a^4-1A. 16a^4-1= 2^4a^4-1^4= (2^2a^2-1^2)(2^2a^2+1^2)= (2a-1)(2a+1)(4a^2+1)

2010-11-23 18:36:02 補充:
因式分解 16a^4-1

A. 16a^4-1
= 2^4a^4-1^4
= (2^2a^2-1^2)(2^2a^2+1^2)
= (2a-1)(2a+1)(4a^2+1)
參考: Myself


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