The matrix A=\left[\begin{array}{ccc} 3 & 3 & 3 \\ 3 & 3 & 3 \\ -3 & -3 & -3 \end{array}\right] has two real eigenvalues, one of multiplicity 1 and

one of multiplicity 2. Find the eigenvalues and a basis for each eigenspace The eigenvalue A is ______ and a basis for its associated eigenspace is The eigenvalue A2 is ________ and a basis for Its associated eigenspace is