中二數學題......

2008-03-08 5:45 am

可唔可以幫我solve左去??!!

(2‧5^n) + 25^n /5^n

請例step!!!

thank you!!!

回答 (4)

2008-03-08 6:31 am

✔ 最佳答案

(2‧5^n) + 25^n /5^n
=2‧5^n+5^2n/5^n
=2‧5^n+5^(2n-n)
=2‧5^n+5^n
=5^n(2+1)
=3‧5^n

👍 0 👎 0

2008-03-13 5:56 am

001講得對!根本係冇定義

👍 0 👎 0

2008-03-08 7:01 am

(2‧5^) + 25^n /5^n
=50n+ 25^n /5^n
=50n+625n/25n
=50n+25n
=75n

👍 0 👎 0

2008-03-08 5:47 am

你呢個既唔係function (function都solve唔到)又唔係equation，根本係冇定義，係solve唔到的

👍 0 👎 0