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valkas [14]
2 years ago
7

Anyone know this? please help and Thank you very much!!!

Mathematics
1 answer:
Monica [59]2 years ago
7 0

(9+7i)(6+3i)\\\\=54+27i + 42i + 21i^2\\\\=54+69i -21~~~;[i^2 =-1]\\\\=33+69i

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