\({(3m-3)^2=(3m-3)(3m-3)\mathrlap{\:+}}\) \({+ 33m^2-3m+3}\) .

\({(3m-3)^2=(3m-3)(3m-3)\mathrlap{\:-}}\) \({- 33m^2-3m+3}\) .

\({(3m-3)^2=(3m-3)(3m-3)\mathrlap{\:=}}\) \({=33m^2-3m+3}\) .

\({(3m-3)^2=(3m-3)(3m-3)\mathrlap{\:\cdot}}\) \({\cdot 33m^2-3m+3}\) .