perplexus.info :: Tricks : Point Ponder

Point Ponder (Posted on 2016-06-03)

Add precisely a single point and transform the relationship given below to an identity:

(7| + |)(7| - |) = 7|

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

(71+1)(71-1)=7!

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