perplexus.info :: Just Math : Making integer an expression

Making integer an expression (Posted on 2009-03-20)

Find all positive integers n which make the expression below an integer:

(25/2 + (625/4 - n)^½ )^½ + (25/2 - (625/4 - n)^½ )^½

See The Solution Submitted by pcbouhid

Rating: 3.0000 (1 votes)

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a solution

| Comment 1 of 13

n = 144 (gives integer = 7) Others?

Posted by ed bottemiller on 2009-03-20 11:37:14

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