+0  
 
0
560
1
avatar

12x^3 + 3x = 321

 Mar 31, 2015

Best Answer 

 #1
avatar+128732 
+5

12x^3 + 3x = 321......this might best be solved by graphing......here you go.....https://www.desmos.com/calculator/fbes2leayp

A cubic like this has either 3 real roots..... or 1 real and 2 non-real roots.......this one looks as though it falls into the latter category with a real solution  at  x =  about 2.963

 

  

 Mar 31, 2015
 #1
avatar+128732 
+5
Best Answer

12x^3 + 3x = 321......this might best be solved by graphing......here you go.....https://www.desmos.com/calculator/fbes2leayp

A cubic like this has either 3 real roots..... or 1 real and 2 non-real roots.......this one looks as though it falls into the latter category with a real solution  at  x =  about 2.963

 

  

CPhill Mar 31, 2015

4 Online Users

avatar
avatar