Operations on complex numbers

(-2 + 7i)(-2 + 2i)

• -10 + 8i
• -10 - 18i
• 18 - 10i
• -18 - 10i

 $\left(6+2i\right)\left(6-2i\right)$  

• 40

• 32

• 36+4i

• 32-4i

Calculate (multiply):
 (4 + 3i)(4 − 3i)

• 16 − 9i²
• 25
• 7
• 8 − 6i

What is the product of (2 - 2i) and (3 + 3i)?

• 6

• 12

• -6

• -12

• none of these

Multiply (5 + 2i)(5 - 2i)

• 21

• 29

• 29-10i

• A

• B

• C

• D

• A
• B
• C
• D

Find the product of

(3 + 2i) (3 - 2i)

• 13

• 15

• 10

• 9