# Complex Number

**Complex Number (Question)**

Simplify the following complex number expressions.

- (2 + 3i) + (1 + i)
- (2 + 3i) – (1 + i)
- (2 + 3i) * (1 + i)
- (3 + 3i) / (2 + i)

*Guide: *

Complex Number

x + yi

x = real number

yi = Imaginary number

Together they combined as complex number.

**Complex Number (Answer)**

- 3 + 4i
- 1 + 2i
- -1 + 5i
- 9/5 + 3/5 i

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