Which of the equations are true identities?
A. n(n − 2)(n + 2) = n^3 – 4n
B. (x+1)^2- 2x...
Mathematics, 06.05.2020 05:23, nani97
Which of the 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
Answers: 1
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