(1+2)(1+2²)(1+2的四次方).(1+2的128次方)简便运算
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(1+2)(1+2²)(1+2的四次方).(1+2的128次方)简便运算
=-(1-2)(1+2)(1+2^4).
=-(1-2^4).
=-(1-2^128)(1+2^128)
=-(1-2^256)
=2^256-1
(1+2)(1+2²)(1+2的四次方).(1+2的128次方)简便运算
=-(1-2)(1+2)(1+2^4).
=-(1-2^4).
=-(1-2^128)(1+2^128)
=-(1-2^256)
=2^256-1