Parlov I didnt see any? may you pls post a link that might help?
Question:
Find all complex numbers z such that z^4 = -4. Note: All solutions should be expressed in the form a+bi, where a and b are real numbers.
https://web2.0calc.com/questions/math-question_145
OH I didnt think of that at all! Thank you very much!!
+422 
