(2+1)(4+1)(16+1)(256+1)怎么算呀
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(2+1)(4+1)(16+1)(256+1)怎么算呀
关于平方差,急
关于平方差,急
(2+1)(4+1)(16+1)(256+1)
=(2-1)(2+1)(4+1)(16+1)(256+1)
=(2^2-1)(2^2+1)(2^4+1)(2^8+1)
=(2^4-1)(2^4+1)(2^8+1)
=(2^8-1)(2^8+1)
=2^16-1
=(2-1)(2+1)(4+1)(16+1)(256+1)
=(2^2-1)(2^2+1)(2^4+1)(2^8+1)
=(2^4-1)(2^4+1)(2^8+1)
=(2^8-1)(2^8+1)
=2^16-1