Задание
Найдите знаки множителей:
| \(\displaystyle \times\) | [?||-]\(\displaystyle a\) | [?||-]\(\displaystyle b\) |
|---|---|---|
| [?||-]\(\displaystyle x\) | \(\displaystyle a\cdot x\) | \(\displaystyle b\cdot x\) |
| \(\displaystyle y\) | \(\displaystyle -a\cdot y\) | \(\displaystyle -b\cdot y\) |