Задание

Расставьте знаки в произведениях:

\(\displaystyle \times\) \(\displaystyle -2\) \(\displaystyle -9\)
\(\displaystyle 7\) [?||-]\(\displaystyle 14\) [?||-]\(\displaystyle 63\)
\(\displaystyle -3\) [?||-]\(\displaystyle 6\) [?||-]\(\displaystyle 27\)