## jordan canonical form

hello

I have a question about jordan normal form matrix, so if you could help me. problem set is: find for the matrix A a Jordan normal form J and matrix B of generalized eigenvectors satisfying
A =BJB^ -1

A=
5 −5 3 4
7 −11 8 11
3 −5 5 4
4 −8 5 9

where polinomial is (r-2)^4

and matrix
(A-rI)^2 =

−1 3 −2 −3
−2 6 −4 −6
−1 3 −2 −3
−1 3 −2 −3

and matrix
(A-rI)^3=0