Найдите верную группировку одночленов и разложите на множители:

\(\displaystyle 8y^{\,9}-36y^{\,6}+\color{red}{18y^{\,7}}-\color{blue}{81y^{\,4}}-\color{red}{8y^{\,3}}+36=\)

\(\displaystyle =(\)[?||-][ ]\(\displaystyle +\color{red}{18y^{\,7}}-\color{red}{8y^{\,3}})+(\)[?||-][ ]\(\displaystyle -\color{blue}{81y^{\,4}}\)[?|+|-][ ]\(\displaystyle )=\)

\(\displaystyle =\big(\)[ ]\(\displaystyle \big)\big(\)[ ]\(\displaystyle \big)\)