Разделите многочлен \(\displaystyle -56y^{\,3}+2y^{\,2}-28y-8\) на многочлен \(\displaystyle 8y+2\) в столбик:

\(\displaystyle -\)	\(\displaystyle \phantom{\,\,}-56y^{\,3}+2y^{\,2}-28y-8\)				\(\displaystyle 8y+2\)
	[ ]				[ ]
	\(\displaystyle \phantom{ -9xx} -\)	[ ]
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		\(\displaystyle \phantom{ xxx} -\)		[ ]
				[ ]
				\(\displaystyle 0\)

и запишите разложение:

\(\displaystyle -56y^{\,3}+2y^{\,2}-28y-8=(8y+2)\cdot \big(\)[ ]\(\displaystyle \big).\)