Find any postive integers x,y,z,u such that: $\displaystyle x^{2}+y^{2}=z^{4} $ $\displaystyle x+y=u^{2} $
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Originally Posted by dhiab Find any postive integers x,y,z,u such that: $\displaystyle x^{2}+y^{2}=z^{4} $ $\displaystyle x+y=u^{2} $ There is no relation between $\displaystyle u$ and $\displaystyle z$ ?!
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