\ANG{
Berechne: 
(a)\quad $\D \left(2^{8}-5\cdot 3^{3}\right)^{2}=$\qquad\qquad
(b)\quad $\D \left(2^{8}-3\cdot 4^{3}\right)^{2}=$
}
\LSG{
(a) 14\,641\qquad (b) 4096
}
