3(-2(-1)-3)to the second power
3(2-3)^2
3(-1)^2
3(1)
=
3
Thinking about it now I have finished I think guests answer is a better interpretation of your meaning. But you could mean either. :)
\([3(-2(-1)-3)]^2\\ =[3*(-2*-1-3)]^2\\ =[3*(2-3)]^2\\ =[3 *-1]^2\\ =[-3]^2\\ =9\)