OpenStax, Elementary Algebra 2e §6.1 Add and Subtract Polynomials · Try It 22 · Algebra · Polynomials

Add and Subtract Polynomials · Try It 22

Find the difference: $(m^{2} + n^{2}) - (m^{2} - 7 mn - 3 n^{2})$ .

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OpenStax, Elementary Algebra 2e · §6.1 Add and Subtract Polynomials · Try It 22

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