melissafhood
melissafhood
30-03-2022
Mathematics
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Multiply (2 – 7i)(–1 + 4i).
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Аноним
Аноним
30-03-2022
Answer is 26+15i
(2-7i) x (-1+4i)
-2+2x4i-7i ( -1) -7i+4i
-2+8i+7i-28i^2
-2+8i+7i-28(-1)
-2+8i+7i+28
26+ 15i
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