Разделите многочлен \(\displaystyle 28s^{\,4}-5s^{\,3}-31s^{\,2}+47s-15\) на многочлен \(\displaystyle 7s-3\) в столбик:

\(\displaystyle -\)	\(\displaystyle \phantom{\,\,}28s^{\,4}-5s^{\,3}-31s^{\,2}+47s-15\)				\(\displaystyle 7s-3\)
	[ ]				[ ]
	\(\displaystyle \phantom{x^{\,4}xx} -\)	[ ]
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		\(\displaystyle \phantom{ 3x} -\)	[ ]
			[ ]
			\(\displaystyle \phantom{ xxxxx\,} -\)	[ ]
				[ ]
				\(\displaystyle 0\)

Найдите недостающий множитель в разложении:

\(\displaystyle 28s^{\,4}-5s^{\,3}-31s^{\,2}+47s-15=(7s-3) \cdot (\)[ ]\(\displaystyle ).\)