If I can show that

and

can only be perfect squares simultaneously when

and

is this enough to say that p = q ?

[edit]

Forgot to say that p and q are integers > 0

Thanks

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- October 3rd 2011, 06:29 AMprocyon2p^2 - q^2 and 2q^2 - p^2 as perfect squares simultaneously
If I can show that

and

can only be perfect squares simultaneously when

and

is this enough to say that p = q ?

[edit]

Forgot to say that p and q are integers > 0

Thanks