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3r+n^2-r+5-2n+2 simplify
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3r+n^2-r+5-2n+2 simplify

User Kunigami
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3r+n^2-r+5-2n+2=n^2-2n+(3r-r)+(5+2)\\\\=\boxed{n^2-2n+2r+7}
User Redben
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