Question

Help !! Multiply the following complex numbers

(5-3i)(2-8i)
A. -14-46i
B. -14+46i
C. 34+46i
D. 34-46i

Answer 1

`(5-3i)(2-8i)=10-40i-6i-24=-14-46i`

Answer 2

Answer: A. -14-46i

Explanation:

(5-3i)(2-8i)

5(2-8i) -3i(2-8i)

10 - 40i - 6i + 24 (i)²

note : (i)² = -1

10 - 40i - 6i + 24(-1)

10 - 46i - 24

-14 - 46i