Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Problem
Problem
The number of distinct real roots of
x
4
−
4
x
3
+
12
x
2
+
x
−
1
=
0
x^4 - 4x^3 + 12x^2 + x - 1 = 0
x
4
−
4
x
3
+
12
x
2
+
x
−
1
=
0
is
Browse the problem library