Question

how about this one:
\[(3-6i)^{2}\]

Answer 1

-27 -36i

Answer 2

45 - 36i

Answer 3

Second one is right :D

Answer 4

you have a choice but the easiest thing is just multiply out
\[(3-6i)(3-6i)=9-36i+36i^2=9-36i-36=-27-36i\]

Answer 5

Lol, I got it right the first time. Thanks satellite :D

Answer 6

think you missed this daniel or else i am very tired. (also true)

Answer 7

No, I missed it. I second guessed myself and came up stupidly :D

Answer 8

oh i didn't see first one was you as well. sorry.

Answer 9

I was wrong. You were right. Simple as that :D Good catch satellite :D