Solutions to $a (2 a^2 + 2 b^2 + c^2 + d^2) = (2 a^3 + 2 b^3 + c^3 + d^3)$ in integers
-1
1
I ask for positive integral solutions to $a (2 a^2 + 2 b^2 + c^2 + d^2) = (2 a^3 + 2 b^3 + c^3 + d^3)$ , where a,b,c,d are positive integers and $aneq bneq cneq d$ . In particular does a solution exist for $d>1$ .
number-theory
share | cite | improve this question
asked 2 days ago
user631773 user631773
1 1
New contributor
user631773 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.