Раскройте скобки: \( -5\cdot(c+y\,)^2=\)?\( c^{\,2}\) ?\( cy\) ?\( y^{\,2}\)

Задание

Раскройте скобки:

\(\displaystyle -5\cdot(c+y\,)^2=\)[?||-][ ]\(\displaystyle c^{\,2}\) [?|+|-][ ]\(\displaystyle cy\) [?|+|-][ ]\(\displaystyle y^{\,2}\)