Question

Which equals left-parenthesis 3 plus 2 i right-parenthesis left-parenthesis 3 minus 2 i right-parenthesis?

Answer options with 5 options
A.
9 minus 4 i

B.
9 plus 4 i

C.
6 minus 4 i

D.
5

E.
13

Answer 1

B. 9 plus 4i