4 x - 3
x^4 - 3
/ 4 ___\ / 4 ___\ / 4 ___\ / 4 ___\ \x + \/ 3 /*\x - \/ 3 /*\x + I*\/ 3 /*\x - I*\/ 3 /
(((x + 3^(1/4))*(x - 3^(1/4)))*(x + i*3^(1/4)))*(x - i*3^(1/4))
-3.0 + x^4