SOLUTION: find the value of k in the equation k^3 - 3k^2 - 4= 0

x1 = 3.3553
​

x2 = −0.17765 + 1.0773i
​
  
x3 = −0.17765 − 1.0773i
​
 
                          Explanation

This polynomial has no rational roots that can be found using Rational Root Test.

Roots were found using cubic formulas.