3+ { 1 – 3[20 + 2(-6 – 7)]}

enter the answer in the box.
answer correctly, needs to be done quick.

which  best  describes the transformation from the graph of  f(x) =  x2  to the graph of  f(x) = (x  – 3)2  – 1?   left 3 units, down 1 unitleft 3 units, up 1 unitright 3 units, down 1 unit  right 3 units, up 1 unit