SOLUTION: how do you solve A to the 4th power + 2A squared - 15= 0 using complex equation

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Question 255575: how do you solve A to the 4th power + 2A squared - 15= 0 using complex equation
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
http://www.wolframalpha.com/input/?i=x^4+%2B+2x^2+-+15%3D0