數學問題中一 5分

2006-11-30 3:10 am

( -3a^4 + 6) * ( 2a^4 + 4) [答案依 a 的降冪寫出]

回答 (5)

2006-11-30 3:15 am

✔ 最佳答案

( -3a^4 + 6) * ( 2a^4 + 4)
= -6a^8-12a^4+12a^4+24
= -6a^8+24

參考: ME

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2006-11-30 3:40 am

1.( -3a^4 + 6) * ( 2a^4 + 4)
= -6a^8-12a^4+12a^4+24
= -6a^8+24

2. ( 3h^2 - 2a) x ( 2h^2 + 2a)
=(6h^4-4ah^2)+(6ah^2-4a)
=6h^4+2ah^2-4a

參考: Myself

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2006-11-30 3:29 am

( -3a^4 + 6) * ( 2a^4 + 4)
= -6a^8-12a^4+12a^4+24
= -6a^8+24

參考: ME

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2006-11-30 3:17 am

( -3a^4 + 6) * ( 2a^4 + 4)
= -6a^8+24

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2006-11-30 3:15 am

唔知對唔對......
ans :-6a^8+24
i hope i canｈｅｌｐ　ｕ

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