Laws of Indices
2013-09-10 7:33 pm
Given that n is a positive integer where n>2, simplify the following expressions.(2xn+3-x2n)/(x2n+3-2xn+6)
回答 (1)
2013-09-10 7:44 pm
✔ 最佳答案
[2x^(n + 3) - x^(2n)] / [x^(2n + 3) - 2x^(n + 6)]= [2x^(n + 3) - x^(2n)] / [x^(2n) x^3 - 2x^(n + 3) x^3]
= [2x^(n + 3) - x^(2n)] / {x^3 [x^(2n) - 2x^(n + 3)]}
= - 1 / x^3
參考: knowledge
收錄日期: 2021-04-28 14:23:15
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130910000051KK00044