Упрости выражения
\(a^2+(4-a)^2=\) [ ];
\((7x-2)^2+28x=\) [ ];
\(b^2+100-(b-10)^2=\) [ ];
\(2m(m+1)-(m-3)^2=\) [ ];
\((x-8)^2-(x-6)(x+6)=\) [ ];
\((3x-5)^2-(3x-1)(3x+5) =\) [ ].