Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
62. Verify that the complex number
−
2
i
-2 i
−
2
i
is a zero of the polynomial
f
(
x
)
=
x
3
−
(
2
−
i
)
x
2
+
(
2
−
2
i
)
x
−
4
f(x)=x^{3}-(2-i) x^{2}+(2-2 i) x-4
f
(
x
)
=
x
3
−
(
2
−
i
)
x
2
+
(
2
−
2
i
)
x
−
4
.
Browse the problem library