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1 Find -3w(w2 + 7w - 9).
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1 Find -3w(w2 + 7w - 9).

User Toucouleur
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\begin{gathered} -3w\mleft(w^2+7w-9\mright) \\ \mleft(-3w\mright)w^2+\mleft(-3w\mright)\cdot\: 7w+\mleft(-3w\mright)\mleft(-9\mright) \\ -3w^2w-3\cdot\: 7ww+3\cdot\: 9w \\ -3w^3-21w^2+27w \end{gathered}

User Andrew Noonan
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