(2m -8)^2 = (2m-8)(2m-8)
(2m-8)(2m-8)
2m x 2m = 4m^2
2m x -8= -16m
-8 x 2m= -16m
-8 x -8 = 64
4m^2 -16m -16m + 64
4m^2 -32m + 64
Square: 4m^2 -32m + 64
