Раскройте скобки: \( -7\cdot(5w-3k\,)^2=\)?\( w^{\,2}\) ?\( wk\) ?\( k^{\, 2}\)

Задание

Раскройте скобки:

\(\displaystyle -7\cdot(5w-3k\,)^2=\)[?||-][ ]\(\displaystyle w^{\,2}\) [?|+|-][ ]\(\displaystyle wk\) [?|+|-][ ]\(\displaystyle k^{\, 2}\)