Solve Complex Numbers

Subtract: (2 + 3i) - (2 - 3i)

• 4 + 6i

• 6

• 13

• 6i

Multiply: (2 + 3i)(2 - 3i)

• 4 - 9i 

• 13

• 4 + 6i + 9i²

• 13 + 6i

Simplify:
-3i(4 + 2i)

• 6 - 12i

• 6 + 12i

• -12i - 6i²

• -12i + 6i²

3+√-4

• 1

• 3-2i

• 5

• 3+2i

Lisa wants to buy two new dresses from the mall. If one dress costs (59 - 6i) and the other costs (34 + 17i), how much money will she need to bring to the mall?

• 82 dollars

• 93 + 11i dollars

• 93 - 23i dollars

• 25 - 23i dollars

i⁷⁹

• i

• 1

• -1

• -i

Perform operation.​ ​ ​ ​​ (a)  

• C

• A

• B

• D

Perform operation.​ ​ ​ ​ (a)  

• D

• A

• B

• C