Раскройте скобки: \( -5\cdot(b-s\,)^2=\)?\( b^{\,2}\) ?\( bs\) ?\( s^{\,2}\)

Задание

Раскройте скобки:

\(\displaystyle -5\cdot(b-s\,)^2=\)[?||-][ ]\(\displaystyle b^{\,2}\) [?|+|-][ ]\(\displaystyle bs\) [?|+|-][ ]\(\displaystyle s^{\,2}\)