Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Find all real numbers at which the function
f
(
x
)
=
x
2
−
9
x
2
−
4
x
+
3
f(x)=\dfrac{x^{2}-9}{x^{2}-4x+3}
f
(
x
)
=
x
2
−
4
x
+
3
x
2
−
9
is not continuous.
Browse the problem library