Samx3
Answered

Westonci.ca is your trusted source for finding answers to all your questions. Ask, explore, and learn with our expert community. Get quick and reliable solutions to your questions from knowledgeable professionals on our comprehensive Q&A platform. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

What expression is equivalent to (3-2i)^2? (Can you show work)
A)13
B)13-12
C)9+4i
D)5-12i


Sagot :

naǫ
[tex](a-b)^2=a^2-2ab+b^2 \\ i^2=-1 \\ \\ (3-2i)^2=3^2-2 \times 3 \times 2i +(2i)^2=9-12i+4i^2=9-12i-4= \\ \boxed{5-12i} \Leftarrow \hbox{answer D}[/tex]