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9w^{4}+18w^{3}+9w^{2}-8\left(w^{2}+2w+1\right)
Utilitzeu la propietat distributiva per multiplicar 9w^{2} per w^{2}+2w+1.
9w^{4}+18w^{3}+9w^{2}-8w^{2}-16w-8
Utilitzeu la propietat distributiva per multiplicar -8 per w^{2}+2w+1.
9w^{4}+18w^{3}+w^{2}-16w-8
Combineu 9w^{2} i -8w^{2} per obtenir w^{2}.
9w^{4}+18w^{3}+9w^{2}-8\left(w^{2}+2w+1\right)
Utilitzeu la propietat distributiva per multiplicar 9w^{2} per w^{2}+2w+1.
9w^{4}+18w^{3}+9w^{2}-8w^{2}-16w-8
Utilitzeu la propietat distributiva per multiplicar -8 per w^{2}+2w+1.
9w^{4}+18w^{3}+w^{2}-16w-8
Combineu 9w^{2} i -8w^{2} per obtenir w^{2}.