2^ (x+2) - 2^x =24
x=?
*Please show the process, Thanks!!!~^^
~1條 F.3 maths~
2008-07-06 7:05 pm
回答 (3)
2008-07-06 7:18 pm
✔ 最佳答案
2^ (x+2) - 2^x =242^x * 2^2 - 2^x =24
3*(2^x) =24
2^x = 8
x=3
2008-07-07 12:05 am
THX!!EASY!!
2^ (x+2) - 2^x =24
2^x * 2^2 - 2^x =24
3*(2^x) =24
2^x = 8
x=3
2^ (x+2) - 2^x =24
2^x * 2^2 - 2^x =24
3*(2^x) =24
2^x = 8
x=3
2008-07-06 7:25 pm
收錄日期: 2021-04-23 20:37:46
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https://hk.answers.yahoo.com/question/index?qid=20080706000051KK00671