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How many roots? (Posted on 2011-07-31) Difficulty: 3 of 5
Prove that the equation
x^4-4*x-1=0
has at most 2 real number solutions.

No Solution Yet Submitted by Ady TZIDON    
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answer | Comment 5 of 6 |
Some time ago, I did need to buy a house for my organization but I didn't earn enough cash and could not purchase something. Thank God my dude proposed to try to take the mortgage loans from trustworthy bank. Therefore, I acted that and was satisfied with my commercial loan.
  Posted by BEASLEYPeggy18 on 2011-11-16 04:04:45
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