/ 2\ / 4 2\ \4 + x /*\16 + x - 4*x /
/ ___\ / ___\ / ___ \ / ___\ (x + 2*I)*(x - 2*I)*\x + I + \/ 3 /*\x + -I + \/ 3 /*\x + - \/ 3 + I/*\x + -I - \/ 3 /