Question 178605
x^4 - 4096 = 0 

x^4 - 2^12 = 0

Factor to get:
(x^2-2^6)(x^2+2^6) = 0

Factor to get:

(x-2^3)(x+2^3)(x+8i)(x-8i) = 0
x = 8 or x = -8 or x = -8i or x = 8i
======================================
Cheers,
Stan H.