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

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Question 1198816: find the value of k in the equation k^3 - 3k^2 - 4= 0
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
solve equation     x^3 − 3x^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.


I used free of charge online solver from this website

https://www.mathportal.org/calculators/solving-equations/polynomial-equation-solver.php?val1=x%5E3+-+3x%5E2+-4+%3D+0&val2=&val3=%7Bx%7D%5E%7B3%7D-4%7Bx%7D%5E%7B2%7D%2Bx%3D0


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