Expresa como potencia.
246.(-6)(-6)(-6)(-6)=
247. (+2)(+2)(+2)(+2)(+2) =
248.(-3)(-3)(-3)(-3)(-3)(-3)(-3)(-3) =
249.(-1)(-1)(-1)(-1)(-1)(-1)=
250. (+5)(+5)(+5)(+5)(+5)(+5)(+5)(+5) =​