Question Number 49126 by 123 45 polytechnicien last updated on 03/Dec/18
$${prouve}\:{it}\:{existe}\:\mathrm{4}\:{intergers}\:{a}\:{b}\:{c}\:\:{and}\:\:{d}\:{such}\:{n}^{\mathrm{2}} −\mathrm{2}\:\:{divise}\:{a}^{\mathrm{4}} +{b}^{\mathrm{4}} +{c}^{\mathrm{4}} +{d}^{\mathrm{4}} \\ $$
Commented by arcana last updated on 03/Dec/18
$${n}\:{es}\:{cualquier}\:{entero}? \\ $$
Answered by 123 45 polytechnicien last updated on 03/Dec/18
$${n}\:{integer} \\ $$$$ \\ $$