Given the values 1,2,4\displaystyle {1},{2},{4}, find all numbers listed that are solution of the equation. (Careful, there might be more than one that work!) If you find several solutions, separate them with a comma. If none of the given numbers work, just enter DNE for 'does not exist'.

x311x2+x4=6x23x4\displaystyle {x}^{{3}}-{11}{x}^{{2}}+{x}-{4}=-{6}{x}^{{2}}-{3}{x}-{4}