Question

Simplify: (-9-6i)^2

Answer 1

45+108i

Answer 2

\[\large (-9-6\color{cornflowerblue}{i})^2 \quad = \quad (-9-6\color{cornflowerblue}{i})(-9-6\color{cornflowerblue}{i})\]Remember how to FOIL out a pair of brackets? :)

Answer 3

ohh yes.. duh! :D i am quite rusty! Thanks