Is-it-possible-to-express-x-y-in-terms-of-x-2-y-2-

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

$${no} \\ $$

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