(2-1)(2+1)(2^2+1)(2^+1)等于几啊?最后一个是(2^4+1)

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(2-1)(2+1)(2^2+1)(2^+1)等于几啊?最后一个是(2^4+1)

(2-1)(2+1)(2^2+1)(2^+1)等于几啊?最后一个是(2^4+1)
(2-1)(2+1)(2^2+1)(2^+1)等于几啊?
最后一个是(2^4+1)

(2-1)(2+1)(2^2+1)(2^+1)等于几啊?最后一个是(2^4+1)
(2-1)(2+1)(2^2+1).(2^2n+1)
=(2^2-1)(2^2+1).(2^2n+1)
=(2^4-1).(2^2n+1)
=(2^2n-1)(2^2n+1)
=2^4n-1