Разделите многочлен \(\displaystyle -15w^{\,4}+42w^{\, 3}-29w^{\,2}+39w-28\) на многочлен \(\displaystyle -5w+4\) в столбик:

\(\displaystyle -\)	\(\displaystyle \phantom{\,}-15w^{\,4}+42w^{\, 3}-29w^{\,2}+39w-28\)				\(\displaystyle -5w+4\)
	[ ]				[ ]
	\(\displaystyle \phantom{22x^{\,4}x\,} -\)	[ ]
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		\(\displaystyle \phantom{ x^{\,3}+\,\,} -\)	[ ]
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			\(\displaystyle \phantom{ xxxx\,\,} -\)	[ ]
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				\(\displaystyle 0\)

Найдите недостающий множитель в разложении:

\(\displaystyle -15w^{\,4}+42w^{\, 3}-29w^{\,2}+39w-28=(-5w+4) \cdot (\)[ ]\(\displaystyle ).\)