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[求助] 超越函数求解析式已有1人参与

求大神帮忙解答这个超越函数

a(x.^2)+bx-c(1+x)log(1+x)+d=0

a,b,c,d为参数，想得到x关于a,b,c,d的表达式。用matlab无法解出，如果只能近似解的话，采用什么方法，怎么解

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1楼 2019-04-18 19:42:47

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8楼: Originally posted by feixiaolin at 2019-05-02 21:38:56
http://m.wolframalpha.com/，可网上求解

Try the following:
Use different phrasing or notations
Enter whole words instead of abbreviations
Avoid mixing mathematical and other notations
Check your spelling
Give your input in English
Other tips for using Wolfram|Alpha:
Wolfram|Alpha answers specific questions rather than explaining general topics
Enter "2 cups of sugar", not "nutrition information"
You can only get answers about objective facts
Try "highest mountain", not "most beautiful painting"
Only what is known is known to Wolfram|Alpha
Ask "how many men in Mauritania", not "how many monsters in Loch Ness"
Only public information is available
Request "GDP of France", not "home phone of Michael Jordan"

我试了一下，解不出来，就是上面的那个。您输进去之后能解出来吗？表达式是多少呢？