SOLUTION: add or subtract (4+√-7)+(4-√-63)

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Question 599411: add or subtract
(4+√-7)+(4-√-63)
Answer by flame8855(424) About Me  (Show Source):
You can put this solution on YOUR website!
(4+√-7)+(4-√-63) = (4+i√7)+(4-3i√7)=8-2i√7