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Polynomials
hard
0:00.0
Find the number of real roots of
x
5
−
5
x
+
2
=
0
x^5 - 5x + 2 = 0
x
5
−
5
x
+
2
=
0
.
A
1
1
1
B
2
2
2
C
3
3
3
D
5
5
5
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