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Mathematics 9 Online
OpenStudy (anonymous):

Help with complex numbers please????

OpenStudy (anonymous):

what is the ?

OpenStudy (anonymous):

|dw:1340066742369:dw|simplify completely

OpenStudy (anonymous):

\[-2\sqrt{15}\] lol I'm not sure though. But what I did is factor 60 (4 and 15) then get the square root of 4 which is 2. Then you move that outside of the radical sign, and since 15 is not a perfect square, just leave it inside.

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