Question Number 168510 by alephzero last updated on 12/Apr/22
$$\mathrm{Is}\:\mathrm{it}\:\mathrm{possible}\:\mathrm{to}\:\mathrm{express}\:{x}+{y}\:\mathrm{in} \\ $$$$\mathrm{terms}\:\mathrm{of}\:{x}^{\mathrm{2}} +{y}^{\mathrm{2}} ? \\ $$
Commented by mr W last updated on 12/Apr/22
$${no} \\ $$