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The sum of two expressions is 5m^2-3n^2. if one of the expressions is 3m^2+4mn-n^2,what is the other?
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The sum of two expressions is 5m^2-3n^2. if one of the expressions is 3m^2+4mn-n^2,what is the other?

User Hmoritz
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4mn+2n^2-2m^2 … just minus it …
User Humble Student
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