4 a + 1024
a^4 + 1024
1*(a + 4 + 4*I)*(a + 4 - 4*I)*(a + -4 + 4*I)*(a + -4 - 4*I)
(((1*(a + (4 + 4*i)))*(a + (4 - 4*i)))*(a - (4 + 4*i)))*(a - (4 - 4*i))
1024.0 + a^4
/ 2 \ / 2 \ \32 + a - 8*a/*\32 + a + 8*a/
(32 + a^2 - 8*a)*(32 + a^2 + 8*a)