The eigenvalues of the coefficient matrix can be found by inspection or factoring. Apply the eigenvalue method to find a general solution of the system. ×₁ = 9x1 + 3x2 + 9x3, x2' = 3x₁ + 15×2 + 3x3, x3' = 9x1 + 3x2 +9x3 What is the general solution in matrix form? x(t) =