johnbonilla69
johnbonilla69
27-06-2018
Mathematics
contestada
simplify (4+7i) - 2i(2+3i)
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annshiro1989
annshiro1989
28-06-2018
(4 + 7 i) - 2 i ( 2 + 3 i)
4 + 7 i - 4 i + 6 i ²
4 + 3 i + 6 i²
6 i² + 3 i + 4
Answer = 6 i² + 3 i + 4
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