/ / ___ ___\\ / / ___ ___\\ / / ___ ___\\ / / ___ ___\\ | | \/ 2 I*\/ 2 || | | \/ 2 I*\/ 2 || | |\/ 2 I*\/ 2 || | |\/ 2 I*\/ 2 || (x + y)*(x - y)*(x + I*y)*(x - I*y)*|x - y*|- ----- - -------||*|x - y*|- ----- + -------||*|x - y*|----- - -------||*|x - y*|----- + -------|| \ \ 2 2 // \ \ 2 2 // \ \ 2 2 // \ \ 2 2 //
(((((((x + y)*(x - y))*(x + i*y))*(x - i*y))*(x - y*(-sqrt(2)/2 - i*sqrt(2)/2)))*(x - y*(-sqrt(2)/2 + i*sqrt(2)/2)))*(x - y*(sqrt(2)/2 - i*sqrt(2)/2)))*(x - y*(sqrt(2)/2 + i*sqrt(2)/2))
/ 2 2\ / 4 4\ (x + y)*(x - y)*\x + y /*\x + y /
(x + y)*(x - y)*(x^2 + y^2)*(x^4 + y^4)