Раскройте скобки: \( -39\cdot(p-x\,)^2=\)?\( p^{\,2}\) ?\( px\) ?\( x^{\,2}\)

Задание

Раскройте скобки:

\(\displaystyle -39\cdot(p-x\,)^2=\)[?||-][ ]\(\displaystyle p^{\,2}\) [?|+|-][ ]\(\displaystyle px\) [?|+|-][ ]\(\displaystyle x^{\,2}\)