Laws of Indices F.3

2011-01-01 1:43 am

圖片參考:http://imgcld.yimg.com/8/n/HA06878030/o/701012310109713873434630.jpg

上面果個係 x^-6

詳細式, thz

回答 (2)

2011-01-01 1:55 am
✔ 最佳答案
[-2^4(x^-6)]/[2^2(x^3)]

=(-16x^-6)/(4x^3)

=-4x^(-6-3)

=-4x^-9

=-4/x^9

2010-12-31 17:57:23 補充:
我睇你個-2^4= - 16
如果係(-2)^4=16
唔知有無睇錯 有錯請指正
參考: me
2011-01-01 1:58 am
Answers with clear steps as follows:


- 2^4 x^-6 / 2^2 x^3

= - 2^( 4 - 2 ) / x^[ 3 - ( -6 ) ]

= - 2^2 / x^9

= -4/x^9
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Hope I have helped you.
參考: Mathematics Teacher Mr. Ip


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