Question

Solve the polynomial equation solve
x^3 + 4x^2 +x+ 6 = 0

Answer 1

u sure the question is correct ?
that equation has horrible roots!

Answer 2

http://www.wolframalpha.com/input/?i=x%5E3+%2B+4x%5E2+%2Bx%2B+6+%3D+0

Answer 3

maybe for the constanta -6 not +6

Answer 4

no, I checked its actually +6.

Answer 5

one root is
\[\sqrt[3]{\frac{ 2\sqrt{43} }{ 3 }-\frac{ 127 }{7 }}+\sqrt[3]{-\frac{ 2\sqrt{43} }{ 3 }-\frac{ 127 }{ 7 }}-\frac{ 4 }{ 3 }\]

Answer 6

hmmm, there are no integer solution
it can solve by interpolation method, but too long
so, better use wolfram like @hartnn said ^^