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I need help for my homework can someone tell me how to do x3 - x2 =55  and say how u done it

Guest Mar 9, 2017
edited by Guest  Mar 9, 2017
 #1
avatar+86859 
+5

x^3 - x^2 =55   subtract 55 from both sides

 

x^3 - x^2  - 55   = 0

 

This would be difficult to solve algeraically.....here are the solutions :

 

http://www.wolframalpha.com/input/?i=x%5E3+-+x%5E2++-+55+++%3D+0

 

x ≈ 4.1672

 

x ≈ -1.5836 - 3.2696 i

 

x ≈ -1.5836 + 3.2696 i

 

 

cool cool cool

CPhill  Mar 9, 2017
 #2
avatar
0

thanks

Guest Mar 9, 2017

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