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2016 Polish MO Finals
1
1
Part of
2016 Polish MO Finals
Problems
(1)
Polynomial
Source: Polish Mathematical Olympiad 2016 P1- Final Round
4/8/2016
Let
p
p
p
be a certain prime number. Find all non-negative integers
n
n
n
for which polynomial
P
(
x
)
=
x
4
−
2
(
n
+
p
)
x
2
+
(
n
−
p
)
2
P(x)=x^4-2(n+p)x^2+(n-p)^2
P
(
x
)
=
x
4
−
2
(
n
+
p
)
x
2
+
(
n
−
p
)
2
may be rewritten as product of two quadratic polynomials
P
1
,
P
2
∈
Z
[
X
]
P_1, \ P_2 \in \mathbb{Z}[X]
P
1
,
P
2
∈
Z
[
X
]
.
algebra
polynomial
number theory
prime numbers
quadratics