Найдите знаки множителей: \( \times\) ?\( a\) \( b\) ?\( x\) \( -a\cdot x\) \( b\cdot x\) ?\( y\) \( a\cdot y\) \( -b\cdot y\)

Задание

Найдите знаки множителей:

\(\displaystyle \times\)	[?\|\|-]\(\displaystyle a\)	\(\displaystyle b\)
[?\|\|–]\(\displaystyle x\)	\(\displaystyle -a\cdot x\)	\(\displaystyle b\cdot x\)
[?\|\|-]\(\displaystyle y\)	\(\displaystyle a\cdot y\)	\(\displaystyle -b\cdot y\)