Question 63
For how many positive integers $a$ does the polynomial
$$
x^{2}-a x+a
$$
have an integer root?
$$
x^{2}-a x+a
$$
have an integer root?
MathNet 2019-part-08 — 179 problems (EN–VI) Question 63
Math Olympiad Vault · MathNet 2019-part-08 — 179 problems (EN–VI)