x9+ax2+bx+c=0
On math stack exchange Tito Piezas III reported an example of irreducible but solvable nonic quadrinomial: x9-6480x2-12960x-38880. I have managed to find parameterization of similar nonic polynomials and couple more examples beyond it.
On math stack exchange Tito Piezas III reported an example of irreducible but solvable nonic quadrinomial: x9-6480x2-12960x-38880. I have managed to find parameterization of similar nonic polynomials and couple more examples beyond it.