2n and 2+n No because 2n is equal to n+ n thus they are not equal

2n and n^2 No because 2n is equal to n+n while n^2 is equal to n x n

2n +2 is not equal to 2(n+2) because 2n+2 is equal to 2+n+n while 2(n+2) is equal to n+n+2+2

2n^2 and (2n)^2 no because 2n^2 is equal to nxnx2 while (2n)^2 is equal to (nxn)x(nxn)

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