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DanielleElmas [232]
3 years ago
13

Need help with this khan academy question. Plus minus square root of negative nine equals plus or minus

Mathematics
1 answer:
klemol [59]3 years ago
3 0

Answer:

3i

Step-by-step explanation:

3i x 3i = -9

-3i x -3i = -9

Therefore the square root of -9 is 3i or -3i

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