SOLUTION: will the product of the square root of x plus the square root of y and its conjugate ever produce an imaginary number?

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Question 878485: will the product of the square root of x plus the square root of y and its conjugate ever produce an imaginary number?
Answer by fcabanski(1391) About Me  (Show Source):
You can put this solution on YOUR website!
It will produce an imaginary number if x<0 or y<0.