Solve the equation x^3 + 9x + 4 = 0 by Cardon's method?

or:Solve the equation x^3 + 9x + 4 = 0 by Cardons method?or:It is called Cardano's method. Spelling mistakes in math are almost always fatal. Google.

or:Solve the equation x^3 + 9x + 4 = 0 by Cardon's method?

or:It is called Cardano's method. Spelling mistakes in math are almost always fatal. Google.com has lot's of links to explanations, and wikipedia.org has a paragraph under \"cubic equation\". It apparently is not as simple as the quadratic formula. I have never used it or even heard of it.www.google.com/#q=Cardano's+method

Tags:equations,