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问题: 计算:(1+2)(1+2^2)(1+2^4)+(1+2^8)

计算:(1+2)(1+2^2)(1+2^4)+(1+2^8)

解答:

(1+2)(1+2^2)(1+2^4)+(1+2^8)
=(2-1)(1+2)(1+2^2)(1+2^4)+(1+2^8)
=(2^2-1)(1+2^2)(1+2^4)+(1+2^8)
=(2^4-1)(1+2^4)+(1+2^8)
=2^8-1+1+2^8
=2*2^8
=512