Question

How do you simplify (-3-2i)^2

Answer 1

5+12 i

Answer 2

Use the exact same process as you would for multiplying out (3 - 2x)^2. The only difference is that you'll be able to simplify i^2 to -1, where x^2 would just stay x^2.

Answer 3

is this a complex number?

the expansion looks like this
(-3-2i)(-3-2i)
first term: -2i*-2i=4i^2=4(-1)
second term: -2i*-3+-2i*-3=12i
third term: -3*-3=9
final expansion=-4+9+12i=5+12i