# Complex Number

**Question**

For the following complex number expressions, simplify.

- (3 + 5i) + (3 + i)
- (3 + 5i) – (3 + i)
- (3 + 5i) * (3 + i)
- (3 + 5i) / (3 + i)

**Answer**

- 6 + 6i
- 4i
- 4 + 18i
- 14/10 + 12/10 i

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