how to solve third degree polynomial?

Hi, I am graduate, student and want to solve the third order equation: please advise. x^3-0.731x^2-3.64x-125.92=0

Answer 1

[Wayne King]

C = [1 -0.731 -3.64 -125.92];
roots(C)

[Hamid]

Hi Wayne, Thanks for help, but it is given empty matrix 0 by 1, can you help please. Thanks.

[Image Analyst]

Funny. When I do it, it says this:

ans =
   5.5211 + 0.0000i
  -2.3951 + 4.1317i
  -2.3951 - 4.1317i

[Hamid]

Thanks- Wayne, I got it.

Answer 2

[Ikraan mahamed]

p = [-2.70889*10^-27  6.86613*10^-20  -1.88905*10^-13  1.96424*10^-6];
r = roots(p)