math既equ定律
如果一條equ有三次方既X點solve
四次方又點
五又點？
如此類推？點sole好??
maths
2007-04-27 5:48 am
回答 (2)
2007-04-27 5:56 am
✔ 最佳答案
use factor therom. then u can find the fator(eg. (x-1)) Then u can use division.For example, 3x6^3 + 2x^2 + 14x - 5 = 0
Then, use factor therom and use division.
so 3x6^3 + 2x^2 + 14x - 5 = (3x-1)(x^2 +x + 5) = 0
then 3x-1=0 or x^2 +x + 5 =0
x=1/3 or (use quadratic formula)
2007-04-26 21:57:01 補充：
i mean x^2 x 5 =0 use quadratic formula
參考: me
2007-04-27 5:53 am
用長除吧~長除好多都可以搞掂 應該話次方數就得 除左有開方數之外
收錄日期: 2021-04-12 23:10:23
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070426000051KK04875