Question 113
Over all real numbers $x$ and $y$, find the minimum possible value of
$$
(x y)^{2}+(x+7)^{2}+(2 y+7)^{2}
$$
$$
(x y)^{2}+(x+7)^{2}+(2 y+7)^{2}
$$
MathNet 2018-part-07 — 177 problems (EN–VI) Question 113
Math Olympiad Vault · MathNet 2018-part-07 — 177 problems (EN–VI)