Add or subtract, as indicated. (5 a^2 b+7 a b)+(9 a^2 b-5 a b)+(a^2…

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Robin Hart

12 hours ago

Add or subtract, as indicated. (5 a^2 b+7 a b)+(9 a^2 b-5 a b)+(a^2…

Add or subtract, as indicated. (5 a^2 b+7 a b)+(9 a^2 b-5 a b)+(a^2…