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Polynomials
hard
0:00.0
Find the number of real roots of
x
4
+
2
x
2
−
3
x
+
1
=
0
x^4 + 2x^2 - 3x + 1 = 0
x
4
+
2
x
2
−
3
x
+
1
=
0
.
A
0
B
1
C
2
D
4
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