Find the eigenvalues for the matrix (4/2/3,2/7/0,-2/1/8)
8,5,6Add '-x-' to each of the three terms on the leading diagonalCalculate the determinant of the 3x3 matrix and set equal to zero (property of eigenvalues)Factorise to find values of x, for which the determinant of the matrix will be equal to zero
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