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Graham Pittman
Mathematics
23 February, 00:50
How do I solve this? (5+i) (4-2i)
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Margaret Larson
23 February, 01:14
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(5 + i) (4 - 2i)
20 - 10i + 4i - 2i²
20 - 6i - 2 (-1)
20 - 6i + 2
20 + 2 - 6i
22 - 6i
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