Question 39
There exist unique nonnegative integers $A, B$ between $0$ and $9$, inclusive, such that
$$
(1001 \cdot A + 110 \cdot B)^2 = 57,108,249
$$
Find $10 \cdot A + B$.
$$
(1001 \cdot A + 110 \cdot B)^2 = 57,108,249
$$
Find $10 \cdot A + B$.
Math Olympiad Vault · MathNet 2013