SOLUTION: Solve equation by factoring. x^2 + 4 = 0

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Question 316483: Solve equation by factoring.
x^2 + 4 = 0
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
It's the sum of two squares.
Z%5E2%2BB%5E2=%28Z%2BBi%29%28Z-Bi%29 where i=sqrt%28-1%29
x%5E2%2B4=%28x%2B2i%29%28x-2i%29