List all of the distinct eigenvalues of A Enter your answers as a list of numbers separated by commas

Question

List all of the distinct eigenvalues of A. Enter your answers as a list of numbers separated by commas.

[ 2
A= 3
−12 −7 A− λ I =0 [ 3
2 −λ 1 0 =0
−12 −7
0 1 [ ] [ 3
2 − λ 0 =0
−12 −7
0 λ [ 3−λ
2−0 =0
−12−0 −7−λ [ 3−λ
2 =0
−12 −7−λ
[ ] ( 3− λ )…
Math