How can I find x?
2011-08-22 10:03 pm
圖片參考：http://imgcld.yimg.com/8/n/HA06083793/o/701108220057713873447400.jpg
Find x in this equation, show me the process of calculation.
回答 (1)
2011-08-22 10:32 pm
✔ 最佳答案
x+50x²=2350x²+1x-23=0
Let 50,1,-23 be a,b,c.
圖片參考：http://imgcld.yimg.com/8/n/HA00016323/o/701108220057713873447410.jpg
So,
x₁={-1+√[1²-(4)(50)(23)]}/[(2)(50)]=[-1+√(4601)]/100
x₂={-1-√[1²-(4)(50)(23)]}/[(2)(50)]=[-1-√(4601)]/100
參考: Hope I can help you! ^_^ (From me)
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110822000051KK00577