Determine all integers such that

is a square.

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- June 24th 2009, 06:56 AMperashPerfect Square
Determine all integers such that

is a square. - June 24th 2009, 07:16 AMI-Think
http://www.mathhelpforum.com/math-he...b9b706e7-1.gif

Let http://www.mathhelpforum.com/math-he...b9b706e7-1.gif

Apply quadratic formula:

Determine integers such that

As k and m are integers, these 2 factors must be factors of 7

Insert k into the equation to receive your answer