Mathematics, 05.05.2020 10:27 Rodriguezi4971

Which of these equations are true identities? A. n(n-2)(n+2)=n^3-4n
B. (x+1)^2-2x+y^2=x^2+y^2+1

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Which of these equations are true identities? A. n(n-2)(n+2)=n^3-4n
B. (x+1)^2-2x+y^2=x^2+y^2+...

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Which of these equations are true identities? A. n(n-2)(n+2)=n^3-4n B. (x+1)^2-2x+y^2=x^2+y^2+1

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Another question on Mathematics

Which of these equations are true identities? A. n(n-2)(n+2)=n^3-4n
B. (x+1)^2-2x+y^2=x^2+y^2+1