Which of the equations are true identities?
A. n(n − 2)(n + 2) = n? – 4n
B. (x + 1)² – 2x + y...
Mathematics, 06.11.2020 08:40 zaleemawhite
Which of the equations are true identities?
A. n(n − 2)(n + 2) = n? – 4n
B. (x + 1)² – 2x + y2 = r² + y2 + 1
Answers: 3
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