Question: Perform the operation and write the result in standard form. 1. (6 4i) + (9 + i) 2. (7 2i) (3

Perform the operation and write the result in standard form.
1. (6 − 4i) + (−9 + i)
2. (7 − 2i) − (3 − 8i)
3. −3i(−2 + 5i)
4. (4 + i)(3 − 10i)

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